0il type
in 912 / 914 Technical Questions
9 years ago
What oil brand and type to use in 912.
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by Rob Seaton » 9 years ago
AeroShell Sport Plus 4
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by James Stricker » 9 years ago
I use Mobil 4T 10W40 full synthetic. I have used both Mobil 4T and AeroShell Sport Plus 4 and I'm convinced that Mobil runs cooler oil temperatures on hot days.
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by Garrett Wysocki » 9 years ago
Is the Mobil the motorcycle type with clutch and gear additives?
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by Rob Seaton » 9 years ago
From prev post:
One major concern is the automotive oil manufactures can change the formulations without any warning. Sometimes the formulation changes do not work with our engines.
This has happened in 2002 with a resulting 3 in-flight engine failures and a FAA airworthiness directive (AD-02-21-16, now rescinded) As a result two oils were banned by rotax because they would not return to the oil tank properly. One of these oils was Motul 5100. its predecessor, Motul 3100, did not have this problem and it was our highest recommended oil.
Some other popular oils have changed the name of the product and the bottle color, does this mean the formulation has changed? How does Rotax get informed about this?
Aeroshell has guaranteed not to change the formula without consulting and testing with Rotax.
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by Bill Hertzel » 9 years ago
I use Mobil 4T 10W40 full synthetic...
Beware that synthetic oils and Lead do not play well together.
You may be OK if restricted to using only Auto Gas.
If you are forced to use 100LL one day, the oil may Gel-Up in the engine. Bad Day!
AeroShell Sport Plus 4 may very well be priced to make you want to look for alternatives,
But is the risk worth the $20 buck you might save per oil change?
Bill Hertzel
Rotax 912is
North Ridgeville, OH, USA
Clicking the "Thank You" is Always Appreciated by Everyone.
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