Posted by #1 Son on September 10, 19100 at 12:59:26:
In Reply to: Re: Mobile 1 Weight Question posted by Ben on September 10, 19100 at 12:54:35:
: ... You want lower first number to allow the engine to crank over with less drag from the oil. You want a reasonable higher second number so that the oil will have enough film strength when hot. *BUT* if the number is too high and the engine is in good shape, it will be *TOO* thick and may build up too high a pressure, which *WILL* cause harm to the engine (usually blow out some of the gaskets...I've done that on two engines).
: #1 remember that your Sub is relatively new so going to a 50wt engine oil is not recommended. Higher weight oils can prolong a worn engine a while.
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That's all I need to hear. I kind of thought that's true. Thanks, Ben.
#1 Son
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