Engine oil

[Flyboy66]

What oil is everyone using in their Rotax engines, and why?

Thanks,

Steve

[DesertFox4]

Aero Shell Sport Plus 4. Made for the Rotax/gearbox.

Before Aero Shell Sport Plus 4 appeared on the market I used Honda Pro oil available at any Honda motorcycle shop. Worked well for many hundreds of hours.

[Esser]

Mobil 1. But I'm switching to Mobil 1 Racing 4T which is a motorcycle racing oil with more wear additives for the gear box. Larry pointed me in that direction.

[Dusty]

Is there different levels of wear additive ?
The reason I ask is ,I was warned not to use additives an account of the sprag clutch
I am using ELF oil, as it is supposedly better for lead scavenging

[Esser]

Typically for wet clutches you don’t want anti friction additives but with the Rotax clutch it’s not like a motor cycle here the plates are opening and closing. Either way, 4T is a motorcycle oil so it accounts for wet clutches. The racing has more anti wear additives for the gear box etc. You can use the racing oil on a vehicle with a catalytic converter. But planes, you’re good.

[jrevens]

Aero Shell Sport Plus 4. Like Steve said, it’s designed specifically for the Rotax, and I’ve had excellent experience with Aero Shell oil in the past.

[Av8r3400]

As Josh said, I run the Mobil 1 Racing 4T, 10W-40. I have since I got my first 912 years ago. I am fortunate in that I can get uncontaminated auto gas in my area, which is what I run.

If you run 100LL more than on a rare occasion, you should run the Sport +4 or another mineral motorcycle oil. Full synthetics and lead don't live well together and will leave lead deposits in the crank case and gear box, even with the use of Decalin.

[Slyfox]

I run real auto fuel and amzoil motorcycle oil. if I know I'm going to use 100LL I switch to the rotax recommended oil. Aeroshell sport.

[efwd]

I'm using Aero Shell Sport Plus 4 as that is what is recommended in my Rotax manual and my 912iS was shipped with 4 or 5 quarts in the crate.

[Flyboy66]

Ok,

next question us where everyone is getting their oil and the price. Is case price cheaper than individual.

Steve

[sourdostan]

AirplaneOil.com

Last case of 12 liters Aeroshell ordered June 2018 was $115.00, shipping $23.55, total= $138.55.

This is the second time I've ordered from them, since
I haven't found it cheaper anywhere else.

Very satisfied.

Stan

[Av8r3400]

My local FBO stocks the Racing 4T and Sport +4, so I buy it from him. I could get the Mobil from Wal Mart a little cheaper, but I'd rather support the FBO.

He also stocks the Rotax filters which are the only ones I will ever use.

[jrthomas]

I bought from here. It's the best price I've found with very speedy delivery. http://www.airplaneoil.com/Aeroshell_Sport_Plus_4_Case_of_12_Liters_p/aerosportplus4-cs-ltrs.htm?_vsrefdom=adwords&gclid=EAIaIQobChMIg_-L15PI3wIVUFqGCh1cxAgbEAAYASAAEgIDkPD_BwE

[Paul Z]

They even have Phillips oil. $55 for a case, something like $68 at Aitcraft Spruce.

[aviator79]

I've been buying oil for our flying club plane from airplaneoil.com, and ordered my Kitfox oil through them too. Don't be put off by their plain website. They ship fast, and you won't find better prices.

[Wheels]

I go with the Rotax Recommended Aeroshell sport 4.

[Ronin]

On the Europa company planes we always used Golden Spectro semi-synthetic. We almost always used 100LL and the synthetic/dinosaur mix was good for scavenging the lead. We also ran TCP in the fuel. Always had lead streaks from the exhaust and a large pile in the bottom of the oil tank at oil changes. This was the recommended oil from a guy that worked for Kodiak years ago. Will be the oil I use again when the time comes.