Re: Marine Lubrication
 

How long to warm up an engine?

I did some research and some feel excess fuel dilution and more water in oil is the result of excess idling.

SO ...excessive idling is NOT a good thing..

..agree with this?

Re: Marine Lubrication
 

no big deal in something w/o a cat. would rather have the thing idle too much than not enough!

the big exception to this is if you run w/o a t-stat!

if we are talking about a vehicle, your automatic transmission will appreciate a good warm up more so than your engine will!

Re: Marine Lubrication
 

:evilb: PENNZOIL GT PERFORMANCE RACING 25W50 - 50 WT.....Performance applications. We have never had a bottom end failure. ever. With proper oil clearence and PSI this stuff works great. No Synthetics. :D

Dean Gellner
Gellner Engineering Marine Power

Re: Marine Lubrication
 

Very similiar composition to Kendall GT-1...lots of the right additives...it would be the very best choice....probably the top conventional oil pick...

....if "premium" synthetic based oils were not around as they hold up to heat better and have more film-strength...

Re: Marine Lubrication
 

Dean, what oil change interval do you use? 20-25 hours?

Jim

Re: Marine Lubrication
 

I have my supercharged customers change oil ever 10 hours. Grant it these guys run them HARD! N/A applications the same when run to the dash board. Normal usage 20 - 25 hours would be fine.

Re: Marine Lubrication
 

Racing with big blown power...even with a premium synthetic...10 hrs is right...too much gasloine in the oil to chance going out further. The guys at Sterling told me that.

You need an oil that mixes with gas and keeps down a good film to survive for long under these conditions.

Re: Marine Lubrication
 

Noing nothing about blowers, I have heard that before but it never made sense to me. If they are running that rich that they are diluting the oil, why arent the rings and cylinder walls being destroyed from lack of lubrication? Everybody knows you cant run with that much unburnt fuel in there because it washes down the cylinder walls. Well??

Re: Marine Lubrication
 

Gas and oil mix and you do get lubricity...when you hit 5% gas or nitro-methane you are heading for trouble..so I am told...

Re: Marine Lubrication
 

So its a myth that running rich will wipe out your cylinder walls. No gas in the oil rich that is.