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Old 08-11-2008 | 09:23 PM
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BOUND_4_HELL
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From: Mississauga, ON, CANADA
Default RE: DL-50 engine

ORIGINAL: switch26

Thanks Geppino,i am going to get a Xoar 22x8,i guess it is all personal preference,kinda like the ford vs chevy kinda thing but i am looking for a good durable prop thats not going to bog the engine,i do want power and speed all together thats why i thought is better to ask since im new to gas,ill order a couple plugs just to have on hand,sorry,im full of questions but i guess it doesnt cost anything to ask,LOL,what oil to get for break in and for flying,and also,i dont really understand what the mixing ratio is,or how it works,when they say 30:1 ratio does that mean 30 parts gas to one part oil?im confused here,Thanks in advance Geppino,you've been alot of help Buddy
Hi Switch26,

If your inclined to start world war three, then the oil question is a good bet. As far as oil goes, opinions vary more that props and pilots are very passionate about their oil. If you asked a 25 pilots you would get 25 different answers.

Here is mine opinion, does not mean that it’s correct, its just what I use.

There seems to be a consensus on the type of break in oil, but even here you will get some variations. Some will say to break it in with synthetic and stay with synthetic throughout the life of the engine. I personally do not buy into that argument.

I believe the consensus for break in is with Lawn Boy ashless mineral based oil. In my case I could not get a local supply of Lawn Boy oil, so I used a good quality mineral based low ash oil. I ran 5 gallons of fuel with the mineral oil at 30 to 1. ( 30 parts fuel to 1 part oil) I find it easer to convert gallons to ounces and then divide by 30 to get the correct amount of oil.

After break in …….. this is how I believe WWIII will start.

In my humble opinion the only mineral based oil good enough for our airplane engines after break in is Pennzoil 2 stroke oil, rated TC. Don’t confuse it with the general purpose Pennzoil, it has a different ratings. Having said that, I also strongly believe that synthetic oil is far superior to mineral based oils.

As far as synthetics oil goes you will get a lot of different answers as well. A lot of synthetic oils are not 100% synthetic, most use some mineral oil as a base stock. If you are going to use one of these, you might as well use Pennzoil.

AMSOIL 100:1 Sabre oil is good. A few of the guys use it at my field with good results. One word of caution with 100:1 AMSOIL Sabre, it needs to be mixed at 100 to 1 NOT 50 to 1 or 80 to 1. If it’s mixed lower that 90 to 1 you will get piston ring sticking and all kind of nasty things will happen including broken rings. It goes against the grain, but in AMSOIL Sabre’s case a little more oil will do more harm than good.

I was going to use Sabre, but because of the mixing problems I did some research and came up with RED LINE TWO STROKE RACING OIL, based out of California, as it’s the oil used by the racing pros in cart racing and 2 stroke bike racing. RED LINE TWO STROKE RACING OIL uses ESTER base stocks that provide the oil with extreme stability at high temperatures and superior film strength. ESTER based oils are used in Turbine engines ( they run really hot) and are fully 100% synthetic. And in my opinion are the most expensive and best base oil stocks money can buy, witch gives Red Line Oil the high-temperature stability that prevents deposits in the hottest upper ring and piston crown areas of our two stroke airplane engines and far superior lubrication for the rings and bearings.

Here is the bonus >> RED LINE 2 STROKE RACING OIL can be mixed from 16:1 to 100:1 without any problems, most people use it at 50 to 1. I personally mix it at 80 to 1. That’s how much I believe in this oil.

There is a few 100% synthetic oils out there, that are good enough to use in our 2 stroke engines, but you will need to do your homework to chose one.

That’s my .02 cents. Hope it helps with your selection.

Bound_4_Hell
Life should NOT be a trip to the grave with the idea of arriving safely in a well preserved body,
but rather to skid in sideways, a beer in one hand, and a Rum and Coke in the other,
body thoroughly used up, totally worn out and screaming "WOO HOO what a ride".