Posted by RN on March 04, 2015 at 12:33:27 from (66.188.143.138):
In Reply to: Re: NOS 5w 30 oil posted by jimg.allentown on March 04, 2015 at 04:50:49:
Oil vapor get recycled/burned through the emission control systems- PCV leads to intake manifold instead of venting to outside air like pre 1966? engines. Zinc additives act like lead additives in gas to 'poison' /coat the catalytic convertor Platinum pellet/sponge beds Exhaust valves, intake valves through guide clearance, piston clearance when cold is another route for oil to get into exhaust system. Diesel spec oils meant for engine without cats still have the zinc additive that is a good 'pressure' lube for flat tappets and gear teeth- it is the default oil for on the road needs for many motorcyclists, 15-40 Rotella is the early Honda recommendation for the older 10-40 car engine oil no longer available in many convenient places. I use it in early Goldwing since the unitary design uses same oil in transmission and common crankcase. Old 5-30 f cleaned likely still good for snowthrower engine, splash lubed small engine in cold, light duty water cooled engines like parade tractor. RN
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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