Aviation oil
Thread Starter
I'm bastardizing my car!
Joined: Sep 2002
Posts: 1,258
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From: Naperville, IL.
Aviation oil
so i was searching for stuff in a search engine and i came across some articals talking about our engines for aircraft use. As some of you probably know, our engines are getting popular for home built aircraft.
Anyway, this site was talking about the oil injection system any why this disable it for aircraft use. They said that automotive crank case oil does not burn completely and builds up a residue that we all know about. Well, you can mix the oil in the gas (we all know this, too) and that will solve the problem. but mixing oil with gas all the time sux.
BUT! it turns out that air planes with their out dated air-cooled engine designs have super huge tolerences and burn oil all the time. So their oil is designed to burn cleaner then automotive oil, and they said that you could run aviation oil and you wouldnt have to worry about residue build up!
the only problem i see is that their isent many multi-weight oils for aviation. Its going to cost a lot too.
What do you guys think!
Anyway, this site was talking about the oil injection system any why this disable it for aircraft use. They said that automotive crank case oil does not burn completely and builds up a residue that we all know about. Well, you can mix the oil in the gas (we all know this, too) and that will solve the problem. but mixing oil with gas all the time sux.
BUT! it turns out that air planes with their out dated air-cooled engine designs have super huge tolerences and burn oil all the time. So their oil is designed to burn cleaner then automotive oil, and they said that you could run aviation oil and you wouldnt have to worry about residue build up!
the only problem i see is that their isent many multi-weight oils for aviation. Its going to cost a lot too.
What do you guys think!
Senior Member
Joined: Jul 2001
Posts: 456
Likes: 0
From: Las Vegas
For the record I have owned airplanes for over 30 years, and also am a licensed aircraft mechanic.
I say this so you might give some credence to my opinion.
MY OPINION: Don't do it.
Your engine must operate over a much higher variation in RPM (and temperatures) than a aircraft engine. Planes spend hours at the same rpm (and temp)
Aircraft oil IS cleaner (AD = ashless dispersant) but it does not have the additives your crankcase neeeds for durability.
Also, we tend to change aircraft oil every 25 hours. Do you?
The best plan is to use Mazda recomended oil in the crankcase, adn PREMIX in the gas.
I say this so you might give some credence to my opinion.
MY OPINION: Don't do it.
Your engine must operate over a much higher variation in RPM (and temperatures) than a aircraft engine. Planes spend hours at the same rpm (and temp)
Aircraft oil IS cleaner (AD = ashless dispersant) but it does not have the additives your crankcase neeeds for durability.
Also, we tend to change aircraft oil every 25 hours. Do you?
The best plan is to use Mazda recomended oil in the crankcase, adn PREMIX in the gas.
Full Member
Joined: Jan 2002
Posts: 105
Likes: 0
From: Albuquerque
Something else to consider about oil is find an oil you like and stick with it. Everyday someone comes up with this oil is better idea. People see it and decide to change to it. Switching oil brands is not good for your gaskets and seals because of incompatible additives. If your car is running fine stick with what you have, wait until you do a rebuild to change to a different oil.
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