I only use synthethic oil. Small engines to big engines. Currently using Castrol Edge, and AMSoil and Royal Purple. Use it in crankcase, transmissions, grease fittings, hydraulic tanks,trasfer case, differentials - anything and everything. It lasts longer and significantly reduces friction. For example if you put Royal Purple synthetic oil in a small block Chevy you will pick up 8 to 12 hp and ft lbs torque. That is a lot without changin a thing. No simple bolt on could add that kind of power for that price. Think about that huge reduction in friction - 8-12 hp/ft lbs - wow! AMS transmission fluid lowers temp in trans and that means longer life. So I will run the synthetic engine oil for 10k miles about 3 times as long as convential oil so the cost is about the same and I get a 2% plus increase in gas milage (which puts me in the black without even considering much improved friction protection and longer engine life and important to me, a lot less time changing oil). To me it is a no brainer. Pays for itself and then some. Facts are facts.
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Today's Featured Article - Piston Ring Removal and Replacement - by Chris Pratt. Piston Ring Removal and Replacement - Replacing rings is a fairly easy process to stretch the engines usability between major rebuilds and cut down on that blue smoke and high oil consumption. Frequently, replacing only the rings is not advisable because by the time you do the teardown and measurement of the components, the pistons are often beyond the manufacturers specification or something else you find will signify the need for a major rebu
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