---------------------------------------------------------- RotaxEngines-List Digest Archive --- Total Messages Posted Thu 05/11/06: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:02 AM - Re: Maintainance Schedule for 912S (Richard Holder) 2. 03:24 AM - Re: Maintainance Schedule for 912S (Thom Riddle) 3. 04:33 AM - Re: Maintainance Schedule for 912S (Airgriff2@aol.com) 4. 08:04 PM - Re: Maintainance Schedule for 912S (NYTerminat@aol.com) ________________________________ Message 1 _____________________________________ Time: 01:02:02 AM PST US From: Richard Holder Subject: Re: RotaxEngines-List: Maintainance Schedule for 912S --> RotaxEngines-List message posted by: Richard Holder NYTerminat@aol.com wrote: > Am I missing something, I don't seem to be able to find > how often Rotax recommends changing oil and filters on > their 912S. Here the recommendation is at 25, 50, 100, 150, 200 hours, but the 50 hour interval should be reduced to 25 hours if more than 30% Avgas has been used for those 25 hours. Always change the oil filter when you change the oil ! Richard G-OWWW High Cross ________________________________ Message 2 _____________________________________ Time: 03:24:08 AM PST US From: Thom Riddle Subject: Re: RotaxEngines-List: Maintainance Schedule for 912S --> RotaxEngines-List message posted by: Thom Riddle Rotax recommends 50 hours between oil and filter changes if you use aviation fuel (100LL) for more than 30% of the time and 100 hours if you use 100LL less than 30% of the time. Even though we use 100LL less than 30% of the time, we change our oil and filter every 50 hours. Just as important, if not more so, is the type of oil you use. Like many motorcycles, the 912 uses the same oil supply for both the engine and gearbox so it MUST HAVE GEAR ADDITIVES. It also has a clutch so it MUST NOT have FRICTION MODIFIERS. If you use a lot of 100LL you MUST NOT use FULL SYNTHETIC oil. Pure synthetic oils do not scavenge the lead. I have used California Power Systems AV-9 formulated especially for the 912 but shipping cost is so high, we will be using Pennzoil Motorcycle Oil in the future, which is one of the oil Rotax has tested and recommends (semi-synthetic). It is available here locally from the distributor without a hefty shipping charge. See: Service Instruction-18-1997 R5 at www.rotax-owner.com/sdocs.htm Thom in Buffalo FAA Powerplant Mechanic ________________________________ Message 3 _____________________________________ Time: 04:33:33 AM PST US From: Airgriff2@aol.com Subject: Re: RotaxEngines-List: Maintainance Schedule for 912S Hi Bob & gang, 1st oil change-- 25 hrs. There after ---- auto fuel= plugs & oil-100 hrs. 100 LL= plugs & oil- 50 hrs. Fly Safe Bob Griffin upstate NY ________________________________ Message 4 _____________________________________ Time: 08:04:51 PM PST US From: NYTerminat@aol.com Subject: Re: RotaxEngines-List: Maintainance Schedule for 912S Thanks for the reply's, where did everyone get their info from? It doesn't appear to be in the Rotax Maintenance Manual. Bob Spudis N701ZX / 912S 36 hrs In a message dated 5/11/2006 7:34:15 A.M. Eastern Daylight Time, Airgriff2@aol.com writes: Hi Bob & gang, 1st oil change-- 25 hrs. There after ---- auto fuel plugs & oil-100 hrs. 100 LL plugs & oil- 50 hrs. Fly Safe Bob Griffin upstate NY