Paul, my Ross drive needs that secondary lubrication. Tip.

motorcycle

oils

contain more phosphates than car oils for extreme pressure

lubrication

Phosphates are bad news for catalytic converters in cars.
I am using Mobil 1 plus a teflon additive. My rotary does not

'produce

oil'

Happy flying
Ian RV6A Down under.

Good point Ian. I forgot about the gear box.

Paul Lamar

The "oil production" in my engine is a function of how much oil I put in

the

fuel.  I had been slowly increasing the amount figuring it was just good
insurance.  When I got to around 6.5 - 7 oz per 5 gal. of fuel I could
notice the increase in oil level when I got to around the 35 hour mark.

By

70 hours (I change oil at 50 - 70 hour intervals) I was almost a quart

over

full.  When I finally figured out what was happening I dropped back to 5

oz

per 5 gal. can of fuel.  At this rate I can barely see that the level is

up

at oil change time.  Wouldn't have noticed it if I wasn't looking.

The main conclusion I came to was that 1 oz per gallon was the right

mixture

to use.

I use Mobil 1 in the engine for the same reason Ian mentioned -  the

gears

in the redrive are much happier with the better shear strength of

synthetic

oil.  Good for the engine too.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

About  two years ago we did some 500 degree F bake test on different oils
and Mobil 1 came out tops on all auto engine oil we tested.

Paul Lamar

For us metric types who buy oil by volume like petrol, what is 1oz to one

gallon as a ratio?
Ian RV6A Australia.

That is a fluid ounce as opposed to an ounce in weight Ian. 
Very confusing I know. One fluid ounce is about 30 CC.
One U.S. gallon is about 4 liters. Not an imperial gallon.
That will get you close enough.

To be exact one US gallon is 3.785 liters.

Paul Lamar
 
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