i just got a new os .12 cv-r and it says in the manual NOT LESS THAN 18% lubricant, and i have some wildcat 20% nitro with 14% lubricant and cant find any with more than 14%. my question is can i use the wildcat fuel for break in and normal use? Any help is greatly appreciated.
-chandler

if you want more lub use ys 20/20 fuel. i use cool power which use synitec oil very slick stuff u know...

well i dont know if i want more lubricant i need to know if it is ok to use the 14% lubricant when the manual says no less than 18%.

Well----------no. You've answered your own question.

Manual says 18% and you got 14% oil.

Smaller engines require higher oil percentages. You can get away will less oil in bigger glow engines, like the Super Tigres and Mokis. But, for a little .12 engine--I'd stick with the 18% if thats what the manual tells you.

I even add EXTRA oil to my fuel when I'm doing the break in. I try and break my engines in with 22% total oil content.

Just buy a quart of Klotz de-gummed castor oil from Tower or the LHS and add 6oz to your fuel jug and that will bump your oil up to just a little more than 18%.

If you want to bump it all the way up to 20% then add about 7.5oz--maybe 8oz.

If you want to bump your 14% oil up to 22% then add about 10 or 10.5oz of oil to your jug.

All my calculations are based on a 1 gallon jug

Break in is the most critical time for an engine. Having AT LEAST the recommended amount of oil in the fuel is crucial. Having a few extra ounces of oil in your fuel during break in won't hurt a thing. I'm a believer in adding oil when doing the break in.

But, doing your break in with 4% LESS oil than recommended by the factory is a disaster waiting to happen.

Absolutely!

Engines without enough oil have amazingly short lifespans. Their warranties are even shorter!

Oil is good.

Race

If that is a car engine then 14% is fine. Use the same fuel your going to use normally. A lot of boat racers use 40-50% nitro and 10% oil from the first tank.

Chandler,


Waddaya mean you can't find more than 14% oil!

You live in the big US of A, where you can find nearly anything.

There are countless brands that offer 18%, or more oil; Sig Champion fuels and PowerMaster GMA fuel, just to name a couple.

You can also order in from Klotz, some [link=http://www.klotzlube.com/storeProdDetails.asp?pi=6]BeNOL deggumed Castor oil[/link] and add to the fuel that you have, to get 20% oil.


Your LHS doesn't carry these products??? Change to another LHS, even if you have to drive (or be driven) to it.
They probably don't care much about you, or your engines anyway.

http://www.wildcatfuels.com/fuel_promix.htm

Here is the fuel you want in any nitro % you want. I know this to be a great fuel because I use it in my YSs.

Dar,

This is a car engine! I doubt you can find car fuel in the US with more than 15% oil. The answer is to use normal aero fuel. Most are at least 18% oil. Please try to be a bit nicer to novice's!

Didn't the original poster state that the instructions specifically state NO LESS THAN 18% oil???

Seems self-explanatory to me. Use 18% oil. Most any airplane fuel would satisfy this requirement give or take a percentage point here or there. Is there a secret formula that we should be using to determine how much oil can be subtracted from the mfrs recommended minimum?

Granted, none of US with our golden needle tweaking fingers would ever over-lean a motor, or subject it to anything but optimum tuning but since warranties are no doubt involved, I'm not sure it's wise to advise a "newbie" to deviate from the instructions.

Seem reasonable?

'Race

They do this because the engines are pulling a significantly larger amount of fuel through them so a lower oil percentage still delivers about the same amount of oil. Something else to keep in mind is that people who race these boats tend to be willing to throw large sums of $$$ into them. The piston/sleeve in these boat engines is replaced way sooner than the typical car or plane enthusiast would be willing to put up with.

Hi!
14% oil will be just fine!!
The recommendations is just that : A recommendation...and as such does only show a persons thoughts or at best, a companies thoughts of what works.
Always remember this is not rocket science...there is a rather wide margin within how engines work and the border line is not whether to run 14% or 18% oil. In a car engine there is definitely other things to worry about than 14% or 18% oil...and that is avoiding the engine inhaling dirt of any kind and not setting the carb lean.

Regards!
Jan K
Sweden

Jan,


I would have to disagree.


The lubricity of synthetic oils in American fuels, is unlike Motul Micro and very far from Sachs Aerosynth II/Aerosave.
Klotz rates its own Techniplate as an inferior replacement for its own BeNOL Castor, as far as lubricity and heat resistance is concerned.

This newbie's engine is not going to endure, unless 18% oil, preferably 20%, with a good deal of Castor oil is used.


I know you are a patron of synthetic oils, but if you compare the running qualities of MVVS engines (up to 15 cc) on fuel containing 20% oil, of which 75% is Castor, to any synthetic, you would be surprised.

You must let the engine run for a while, before the impact of the oil reaches its maximum.


On a lot of Castor oil in a 20% total, they run much better!

Hi!
Dar...Many car competitors use much less than 14% oil in there fuel. And I don't mean just synthetic oil...in car racing running just synthetic oil is not recommended.
So using 14% oil,if it contain some castor oil, running the engine a little rich is not going to hurt anything.
The important thing in cars is to avoid as much as possible that dirt comes into the engine.

Regards!
Jan K
Sweden