SI-916 i-001 / SI-915 i-001R1 SI-912 i-001R6 / SI-912-016R11 SI-914-019R11 This SI revises SI-912 i-001R5/SI-915 i-001/SI-912-016R10 and SI-914-019R10 dated 20 December 2017 SERVICE INSTRUCTION

Selection of suitable operating fluids for ROTAX® Engine Type 916 iSc B, 915 i A/B (Series), 912 i (Series), 912 and 914 (Series) ATA System: 12-10-00 Operating fluids

1) Planning information To obtain satisfactory results, procedures specified in this publication must be accomplished with accepted methods and prevailing legal regulations. BRP-Rotax GmbH & Co KG cannot accept any responsibility for the quality of work performed in accomplishing the requirements of this publication. 1.1) Applicability All engines of type: Engine type Serial number 916 iSc B all 915 i A (Series) all 915 i B (Series all 912 i (Series) all 912 (Series) all 914 (Series) all 1.2) Concurrent ASB/SB/SI and SL None. 1.3) Reason Introduction of the new engine type 916 iSc B. Adaptions/revisions in the tables for the released fuels according to local standards. Removal of fuel brand-names which are already compliant to local standards. 1.4) Subject

Selection of suitable operating fluids for ROTAX® engine type 916 iSc B, 915 i A/B (Series), 912 i (Series), 912 and 914 (Series). 1.5) Compliance

Corresponding Maintenance Manual of engine type ROTAX® 916 iSc B, 915 i, 912 i, 912 and 914 (Series), current issue. Non-compliance with these instructions could result in engine damag- mWARNUNGWARNING es, personal injuries or death.

1.6) Approval The technical content of this document is approved under the authority of the DOA ref. EASA.21J.048.

d06544.fm 10 December 2020 Current valid documentation see: 12-10-00 www.flyrotax.com page 1 of 13

Copyright - BRP-Rotax GmbH & Co KG. All rights reserved. )MaterialInformation 2) Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 .1 References 1.11) modifications Software 1.10) Electrical load data 1.9) Mass data 1.8) Labor time 1.7) .)Material- cost andavailability 2.1) .3 Interchangeability of parts 1.13) Other Publications affected 1.12) Maintenance Manual (MM) - (IM) Manual Installation - Operators Manual (OM) - In additiontothis technical information refer to current issueof No change. No change. Moment of inertia - - - unaffected. Changeweight of none.- - None. None. Not affected - None. NOTE: The status of the Manuals can be determined by The statusof the Manuals can checkingbe determined the table of NOTE: Co KG. All rights reserved. Allrights KG. Co free. www.flyrotax.com pare this number to the are listed onthe ROTAX website: amendments. The 1 The amendments. . Updates and current revisions can be downloaded for st column of this table shows therevision status. Com- SERVICE INSTRUCTION page 2of13 page 12-10-00

d06544.fm d06544.fm Copyright -BRP-Rotax GmbH & )Lubricant 3) SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 10 December2020 .)General 3.1) - Pay special Pay attentionto engine operation tips(see section 6). - On turbocharged engines, always conduct a cool-down run before shutting down in accor- - - Avoid oils strictly specified for use in Diesele specified forusein oilsstrictly Avoid - Becauseof the incorporated friction clutch,oils with friction modifier additivesareunsuitable - to Due high stresses inthereduction gears,with gear oils additives suchAeroShell as OilSport - - Insufficient oil flow capability causes too much too causes flow capability oil Insufficient - Avoidanceclutch of slipping due toadditives. useof - Good gearwear protection. - viscosity forstartsoil Correct cold and sufficient oil pressurehigh attemperatures. - The criteria for correctengine oilselection are: Furthermore, long downtimesthatoil with contains water and contaminants cancausecorro- - Long-termoperation with an enginethat is too cold and/oroperating too long withan overly rich - oil obeying not and oils unsuitable of use the periods, cool-down insufficient to addition In - to damage. lead and oilsystem of the parts lead to particle deposits and cause damage to bearings and seals. Hard oilresidues canobstruct On turbocharged engines, as pistons,piston rings, exhaustvalves componentsthat are not sufficiently resistantto heat, theseforeign particlescause canparts such oil with oil. Together engine inthe suspended are combustion during formed particles Foreign Only useengine oilstestedandreleased accordingthe to ROTAX - If possible, operate the listed engine types using unleaded or low-lead fuel. ( 100 LL is - Conclusions - High oiltemperature High - - Ability to withstand combustion towithstand Ability - dance with the relevant Operators Manual (OM). Manual Operators relevant the with dance clutch in the gear box. cienttemperature high properties and additivesthat affect maythe operation of the overload becausecould this resultclutch in slipping during standard operation. Plus 4 are highly recommended. section 3.2. sion damage, especially on the bearings, with serious consequential damage. consequential serious with bearings, the on especially damage, sion fuel mixture cancause water and fuel contaminatio change intervals can especially causedamage.such not considered lowleadedthisin context.). up (coking)can alsoflake off and block/restrict the oilreturn passage. of oilcarbon buildup on the bearing and sealing seats of the . The oil carbon build- operation. in oil level tank.Thiscan the external only be tor installed on the oil tank. oil tor installedonthe Co KG. All rightsreserved. Co KG. All durability. This is especia durability. Thisis failing to an ensure ad products containing lead,whic productscontaining , etc., to seize and lead to problems. to lead and seize to , etc., ngines.These may not be suitabledue to insuffi- SERVICE INSTRUCTION equate cool-down period equate cool-down lly important for the turb important forthe lly volume toremain volume in t detected during testing testing during detected n intheoil,reducingit h enter the oil during AVGAS h entertheoilduringAVGAS ® standard (RON424), see he engine, leading tolow he engine, o engine due to the risk engine dueto o prior to shut-off may prior toshut-off with anoillevel indica- s lubricationcapacity. page 3of 13 12-10-00 Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 .)Operation withunleaded andlow-lead fuel(less than 0.1 g/liter lead content) 3.2) designed to be used with ROTAX with used be to designed describes the specification, performance parameters 2) 1) ROTAX 1 iSeries, A/B 912 iSeries,912 and Series 914 (useof unleaded fuel orMOGAS): 915 Engine oils tested according toRON 424* for use with ourROTAX®engine types 916 iSc B, * SHELL OE The coefficient of viscosity indicatesthe tendencyofto oil flow but itisnot The previous formulation Plus4can still of be AeroShellused Oil until Sport NOTE: NOTE: RON 424 in red bottle red in formulation new with m Brand NOTICE WARNUNG ® ® Authorized Distributor and will not bedisclos Distributor andwill Authorized : The ROTAX Co KG. All rights reserved. Allrights KG. Co AeroShell Oil Sport Plus 4 OilSportPlus AeroShell (MOGAS or AVGAS). (MOGAS or changes must beincreased regardless tervals must generallybe shorter, and inparticular,thefrequency oil of eas, interferenceand/or bydust salt), the time between maintenance in- ar- weather cold/hot in (operation conditions operating severe of case In type. schedule found inthe currently validMaintenance Manual for the engine intervals remain unchanged in regard to the published maintenance When operating primarily on unleaded fuels or MOGAS, the maintenance possible. aquality specific code.necessarily deviations Country of the viscosity are its expiration date. ® Norm424 (RON 424)is aBRP-Rotax internal standard,which Description ® Aircraft Engines. It is only available on special request via the the via request special on available only is It Engines. Aircraft 1)

2) O 2*SAE10 W-40 424* RON SERVICE INSTRUCTION and testing methods of lubricants specifically ed tothird parties Specification of the type of fuel mainly used without priorconsent. without Viscosity page 4of13 page 12-10-00

d06544.fm d06544.fm Copyright -BRP-Rotax GmbH & SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 10 December2020 .)Operationwith leaded AVGAS fuels 3.3) 915 i A/B i Series,912 i Series, 912 and914 Series (useleaded of AVGAS): 915 oilsEngine tested according to RON424* forwith our use ROTAX® engine types916iSc B, increased wearor operating troubles. * designedbe towith used ROTAX describes the specification, performance parameters 2) 1) ROTAX More frequent oil changes will assure timelyre assure will More frequentoilchanges Performmaintenance checks according to the latest Maintenance Manual. SHELL OE The coefficientof viscosity indicates the tendency of oilto flow but it isnot previous The formulation ofAeroShe NOTE: NOTE: RON 424 bottle in red with newformulation Brand ® ® Authorized Distributor and will notbedisc andwill Distributor Authorized : The ROTAX Co KG. All rightsreserved. Co KG. All AeroShell Oil Sport Plus 4 AeroShell OilSport possible. specif code. aquality Country necessarily its expiration date. ® Norm 424BRP-Rotaxa (RON424) is internal standard, which Description ® Aircraft Engines. Itis onlyava 1)

2) moval of residues ando moval ofresidues SERVICE INSTRUCTION losed to third partie losed tothird and testing methodsoflu RON 424* SAE 10 W-40 SAE10 RON 424* Specification ll Oil Sport Plus beuseduntil Plus 4 canstill ll OilSport ilable on special request viathe ic deviations of the are viscosity s without priorconsent. s il sludgethusavoiding bricants specifically specifically bricants Viscosity page 5of 13 12-10-00 )Coolant 4) Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 .)Conventional coolant 4.2) General 4.1) tection against freezing. pro- and aluminum, for especially protection, corrosion excellent It gives coolant. waterless than Conventional coolant (with about 50% water content) has aspecific thermal capacity that ishigher Waterlesscoolant basedpropylene on glycol (notallowedfor916 A/BiSc B,915 Series i and - Conventional coolantbasedon ethylene glycolwithwater 50% content - permitted: are of coolant types 2different In principle, engine componentsand freezing of thecoolant achieved is with appropriate additives. headsfrom over-temperature bymeansheat of cylinderheads and ramcooled aircylinders. function The thecoolant of protect isto the cylinder i, Series, 912 and 914 Series have liquid cooled All engine types 916 iScB, 915 iA/BSeries,912 authorized distributors (nottested from BRP-Rotax). Coolantswith amixture50% of antifreeze 50% anddistilled ofwater recommended the by OE Coolant shouldbealow silicate NOTE: For exact monitoring of the coolanttemperature, beenhas alimit set. This NOTE: OE The following listis based onthe experiences and localrecommendation NOTE: m m 912 i Series) i 912 NOTICE NOTICE WARNUNG WARNUNG Co KG. All rights reserved. Allrights KG. Co PRESTONE PRESTONE PETROL OMV CASTROL CASTROL BASF ® Brand ® ant and instrumentation for each aircraft type. characteristics, testingbe must done to determine the most suitablecool- manufacturer aircraft bythe conducted certificationThe and determination of the correct coolanttype must be Series. i 916SeriesiSc B,typesA/B 915 and i 912 Waterless coolant based onpropylene manufacturer directions regarding mixture percentages etc.. information andinstructions. low as 120 °C (248 °F). Refer to the current Installation Manual for more in a50/5 BASF Glysantin because standard coolantis necessary based on ethylene glycolsuch as recommendation. vary from one to the other region. Please contact the localdistributorfor a by the authorized distributors. Coolant brands, with same designation, may ® ® ® ® ® 50/50DEX-COOL Premix extended life DEX-COOL extended life Antifreeze ConcentrateAntifreeze / 11 G OMV Coolant Plus Anti-Boil Antifreeze Antifreeze All-Climate Plus/G48 Protect Glysantin dissipation.Protection against corrosionof the 0 proportion mixt 0 proportion SERVICE INSTRUCTION Description and nitrite free formula. nitrite Followand coolant . Aseach aircraft type has different glycol isnot permitted forengine ure canboilat a temperature as page 6of13 page 12-10-00

d06544.fm d06544.fm Copyright -BRP-Rotax GmbH & SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 10 December2020 .)Waterless coolant for engine types 912/914 Series 4.3) 4.3.1) Warnings for operatingwith waterless coolant The coolantThe suppliers guidelinesbe must adhered to when fillingorre-filling coolant. - Water or coolant containing water water containing coolant or Water - - If EVANS If - Any water present in the cooling system issepa - refractometer Brix a using tested be can %; it 3.6 exceed not must content water max. The - OE EVANS NOTE: m m m m be replaced againwith EVANS ant based on pure 100% ethylene glycol can be used temporarily. However, the coolant must system to fail due to insufficient coolant quantity coolant insufficient to due fail to system EVANS NOTICE NOTICE NOTICE NOTICE WARNUNG WARNUNG WARNUNG WARNUNG Brand ® ® Co KG. All rightsreserved. Co KG. All coolantis not availablelocallyfor servic SHELL TEXACO YACCO VELVANA SHELL Brand P+ China Europe/Middle East andrestof the USA world Evans High Performance Coolant NPG+C Aero Cool180° is not available. added) be sure to add only 100% pure ethylene glycol if EVANS conventionalAs some coolants are availablein apre-mixed formula (water EVANS ant and instrumentation for each aircraft type. testingmu characteristics, conducted bythe aircraft manufacturer. As each aircraft type has different The certificationand determination the of correct coolant typebe must Suffix - 01. iSeriesfor or 912/914Seriescylinder withheadversion Series, 912 Waterless coolantis not permitted forengine typesiSc B,915 916 iA/B and expand like conventional coolant. naming, specificationor successor products contact your localEVANS several names. For some recent examples, seealso the next table. For any Cooling Systems,Official Inc. Partner ® ® ® ® ® ® ® coolants are fully oper coolants arefully Cooling Systems,Inc. offerscoolant its NPG+C worldwide under ® Description within the nextdays. 15 LR-35 G49 FRIDEX Havoline Extended LifeAntifreeze SHELLZONE DEX-COOL must never ® SERVICE INSTRUCTION ® st be done to determine the most suitable cool- suitable the most determine to done st be be addedto the cooling system! rated out as vapor. This can cause the cooling DEX-COOL Description ing thecoolingsystem, aconventional cool- ational to -40°C (-40 . ® Extended Life °F). It will notfreeze page 7of 13 ® coolant 12-10-00 ® Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 m m NOTICE NOTICE WARNUNG WARNUNG Co KG. All rights reserved. Allrights KG. Co (see: however the original text and descriptionthe inusers manualis binding aboveThe warnings are taken fromthemanufacturer’s users manual, notwould containadditives. any If truepure 100% ethylene glycol were the additives to drop out and possibly block cooling system passageways. only a temporary measure. Using the Regarding the temporary use of “100% pure ethylene glycol”. It should be www.evanscoolant.com SERVICE INSTRUCTION ). concentrate over time would cause used,be itwould corrosive asit page 8of13 page 12-10-00

d06544.fm d06544.fm Copyright -BRP-Rotax GmbH & )Fuel 5) SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 10 December2020 .)AVGAS fuel additives 5.2) Automotive fuels 5.1) 5.1.2) Suitability offuel systemcomponents ofairframe 5.1.1)(Unleaded E10 blendedethanol)with 10% for the 916 iSc B, 915 i A/B Series, 912 i Series, 912 and 914 Series engine types. relevant engine type and/or the table inchapter 5.3. For ROTAX® aircraft engines different fuel types are available. See Operators Manual (OM) of the Other similar additives areno Other similaradditives precautions. BRP-Rotax only has field experience with Decalin Runup® and Alcor TCP® brands. safety and health to regard with especially instructions manufacturers additive the follow Always mental effectthe on engine,used when inthe recommendedmanner. reduceleaddeposits inthe combustion chamberandpiston/ring assemblies and have nodetri- havenot been tested byBRP-Rotax. Field exper Additives under theof namesDecalin® and Alcor®, which aidthescavengingof lead deposits above documents. stronglyIt is recommended that non-certified aircraft alsoconform to the informationgiven inthe requirements. These contain details regarding the use of ethanol Information Safety EASA - Special AirworthinessIn FAA - AdvisoryCircularLetter FAA AC 33.91-1 - AdvisoryCircularLetter FAA AC 23.1521-2 - BRP-Rotax recommends thataircraft manufacturerandowner/operators read the following: any furtherinformation on techniques,procedures oftheairc It istheresponsibility toup 10% (E10) are compatible with allfuel system components. BRP-Rotax urges owners to confirm withtheir airf not beentested by BRP-Rotaxare and not permitted foruse. engines are nowapproved forwith use E10. Fuels that contain morethan 10% ethanol blend have In additionand tounleaded AVGAS automotive fuel (Mogas) the ROTAX® 912/914Series of lows: of ethanol blendareavailable. Therefore the ma ious environmental, economic and political reasons anumberoffuel types withdifferent amounts In addition to AVGASvarious automotive fuel types OE The aircraft manufacturer hasto show compliance to the relevant require- If noneof the fuelsmentioned in chapter 5.3 isavailable, consult the corre- NOTE: NOTE: Co KG. All rightsreserved. Co KG. All dent on the aircraft fuelsystem design. ments onaircraft levelregarding vapor lockissue isstronglyasdepen- this sessed,be hasto equal or better. sponding European Standard EN228 asareference. The fueltobe as- Bulletin – SIB 2009-02 t recommended as BRP-Rotax canno BRP-Rotax t recommendedas raft manufactur formation Bulletin CE-07-06 er to test theirfuels er totest ximum amount of ethanol blendis defined asfol- ience showsience that these products significantly SERVICE INSTRUCTION rame manufacturer that ethanolblended fuels of and limitations ofethanol using blended fuel. (alcohol) blended fuels and the type certificate with different quality are available. Due to var- ystem componentsandsupply t comment on their suitability t commenton page 9of 13 12-10-00 Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 .)Fuel accordinglocal to standards 5.3) The following fuels canused. be nieTp 1 //L-92SUS-94F/UL A/F/UL-S/ULS 912 -914 Engine Type 912 NOTE: There is a risk of vapor of There isarisk lock form NOTE: m MOGAS (date: 1997/2002) NOTICE South African South WARNUNG US standard (date: 2007) (date: 2017) (date: 2020) (date: 2006) (date: 2004) European Canadian Canadian Ukrainian standard standard standard standard standard Russian Co KG. All rights reserved. Allrights KG. Co Super-98 Super Euro-98 Super-98 Super Euro-98 Super Super-98 Euro-95 Premium R51866-2002 Premium-95 Euro-98 Super 51105-97 R PremiumEuro-95 Regular-Euro-92 Super-98 R51866-2002 Premium-95 Regular-91/92 R 51105-97 Use only the correct fuel for the specific climate zones. climate specific for the fuel the correct only Use operation. CAN/CGSB-3.5 grade 1 CAN/CGSB-3.5 grade 3 grade CAN/CGSB-3.5 grade1 CAN/CGSB-3.5 EN 228 Super plus EN 228 Superplus EN228 plus 228Super EN Clean Fuels (CF2) Clean Fuels (CF2) Clean Fuels Fuels(CF2) Clean DSTU 4839-2007 DSTU 4839-2007 DSTU 4839-2007 DSTU AS19:06SANS 1598:2006 SANS 1598:2006 EN 228 Normal EN 228 N28SprEN228Super Super EN 228 ASTM D4814 (min. AKI87) Min. RON 90 Min. RON 912 A/F/UL 912 -8Er A-98-Euro A-95-Euro A-98-Euro A-95-Euro A-92-Euro Reference standard (checked forcompliance) Local standards SERVICE INSTRUCTION Usage/Description ation if winter fuel is used forused is summer fuel winter if ation 912 S/ULS-914F/UL ASTM D4814 ASTM (min. AKI91) Min. RON95 page 10 of 13 12-10-00

d06544.fm d06544.fm SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 Copyright -BRP-Rotax GmbH & 10 December2020 nieTp 1 S/SSot-95iSc/iS915 A- iScB iSc/iS Sport -915 TypeEngine 912 MOGAS AVGAS South African (date: 2017) (date: (date: 2008) (date: (date: 2006) (date: (date: 2007) (date: (date: 2020) (date: (date: 2008) (date: European Ukrainian standard standard standard standard standard unleaded standard Indian eddAGS10L SMD1 AVGAS D910 100LLASTM ASTM D910 AVGAS100LL leaded Indian US Co KG. All rightsreserved. Co KG. All EN 228 Super plus EN 228 Super plus EN228Super 228Superplus EN Clean Fuels (CF2) Fuels Clean DSTU 4839-2007 DSTU SANS 1598:2006 912 iSc/iS Sport 912 iSc/iS N28SprEN228Super Super EN 228 ASTM D4814 IS 2796:2008 (min. AKI87) Min. RON 95 ASTM D7547 S29:08IS2796:2008 IS 2796:2008 Min. RON90 912 A/F/UL UL91/UL94 A-98-Euro A-95-Euro MG 95 G9 MG95 MG 95 MG 91 Reference standard (checked for compliance) Local standards SERVICE INSTRUCTION Usage/Description Usage/Description 915 iSc/iS A - 915iScB iSc/iSA 915 912 S/ULS - 914 F/UL -914 912 S/ULS ASTM D7547 Min. RON 95 Min. RON ASTM D4814 ASTM (min. AKI 91) Min. RON95 UL91/UL94 page 11of 13 12-10-00 Copyright -BRP-Rotax GmbH & 10 December 2020 SI-914-019R11 i-001R6 / SI-912-016R11 SI-912 i-001R1 i-001SI-915 / SI-916 nieTp 1 iSc B Engine Type 916 OE AVGAS100LL placesgreater stress onthevalve dueits tolead high content The Anti Knock Index (AKI) isvalid for fuels according to ASTM D4814, and NOTE: NOTE: NOTE: AVGAS MOGAS AVGAS leaded AVGAS 100 LL ASTM D910 AVGAS 100 LL ASTMD910 AVGAS100LL LLASTMD910 AVGAS100 leaded US standard (date: 2020) (date: (date: 2017) (date: European standard eddAVGAS D910 100LLASTM leaded Co KG. All rights reserved. Allrights KG. Co ments in the oil system. and forms increased depositsin the combustion chamberleadandsedi- forwhich fuelsaredefined by AKIinsteadRON. of serves the to reference right only to the listed versionstandard.a of of those individual standards. In case of BRP-Rotaxany re- uncertainties in brackets.in notpro-ac will BRP-Rotax alllistedstandards haveFurthermore been assessed with the version noted would gobeyond theof scope this document. The above tables listnational fuel standards, butno brand names -as this 912 iSc/iSSport Min. RON95 Reference standard (checked forcompliance) Local standards Usage/Description SERVICE INSTRUCTION EN 228Superplus EN EN 228 Super EN 228 ASTM D4814 ASTM D4814 (min. AKI91) Min. RON 98 RON Min. 1 iScB 916 tively monitorthe 1 iSc/iSA-915iScB 915 Min. RON95 further developmentfurther page 12 of 13 12-10-00

d06544.fm d06544.fm )Summary 7) General engine operation requirements andoperating tips 6) SI-914-019R11 i-001R6 /SI-912-016R11 SI-912 i-001R1 i-001 /SI-915 SI-916 Copyright -BRP-Rotax GmbH & 10 December2020 Inquiries 8) does not lie within ROTAX within lie not does Translation into other languages mightbe performed in the courseoflanguage localizationbut section 1.5. These instructions (section3) have be to followed inaccordancewith the deadlines specified in engine operation and excessive carbonandlead deposits. system leading to atoo rich mixture condition. This rich mixture conditioncan further lead to rough Excessive engine vibration, particularlyatidlelow Dependingthe ontype of fuel used,operating conditions, and the demandsthe ofengine mis- 7. Avoid extended useof pre-heating air when safe and reasonable. 6. Toavoid formation of condensation water in theengine oil, the oiltemperaturerise must at 5. When operating with unleaded fuels or MOGAS and when engine oil temperatures often 4. For turbocharged engines ensure anadequate running cool-down periodtoprevent deposits 3. Always insurethat the oiltype used isadequate for climatic conditions and peak engine operat- 2. the Keep enginetemperatureoil below°C 120 (250 over °F) mostthe of operating period. 1. Inquiries regarding this ServiceInstru In anycasethe original text inEnglishlanguage and the metric units are authoritative. provided on A list ofallROTAX A list of yourarea. m vals tovals avoid excessive build up build upof leadother and residues inthe engineadjustAlways oil. the engineoil change inter- excessive the avoid to changes oil of frequency the to increase necessary be itmay profile sion least onceevery operationalto day at least(212 100 °C °F). 120exceed °C (250°F) use of ahigh qualityfull synthetic oil isrecommended. by coking of oil. petroleum basednotrecommended. oilis temperatures.ing Ifoperational oiltemperaturesexceed 120 °C(250 °F),use minerala of or NOTICE WARNUNG www.flyrotax.com Co KG. All rightsreserved. Co KG. All ® Authorized Distributors or their independentprovided ServiceCenters is on is vant Operators Manual. Do notuseoil additives and observe the operatingperlimitsthe as rele- graphic. revisionA bar outsidethe of page marginindicates achange to text or ® scopeofresponsibility. . of sludge intheengine oil. ction should be sent to the ROTAX tothe be sent should ction SERVICE INSTRUCTION speeds, can impair the carburetorfuel metering ® Authorized Distributor Authorized page 13of 13 12-10-00