Re: OT--gasoline engines

Posted by NCWayne on November 26, 2014 at 08:03:48 from (173.188.169.54):

In Reply to: OT--gasoline engines posted by Jiles on November 25, 2014 at 20:34:40:

I can't speak to the wear on gasoline engines, but given what I have seen with the engine oil used by several of my customers in their diesels, the quality of the oil matters, regardless of the age of the engine.

In one of the cases I've got in mine, we opened up an engine due to a pinhole in a liner. The everything in that engine measured out to standard (ie no wear) after 12 years of hard running. Having worked in specialization at CAT for a number of years, building engines, Dad was amazed as he said no wear in that amount of hours 'did not happen'. In a second case my customer was going through turbos every 9 months to a year due to the engine going immediately to 1300 RPM on startup, and shutting down from the same speed. This caused the turbo to spool up before getting full oil pressure on startup, and left it turning after oil pressure was gone on shutdown. I got him using the same oil as the other guy mentioned, and the average turbo life went to well over 2 years. The company uses proprietary ingredients in their oils and greases, and will tell you do not put it in a brand new, rebuild engine, as it will not seat the rings. In other words run something else to break it in, and then switch to their stuff at the first oil change.

In other parts of the machine, the guy with the engine also uses the same companies oil in the other systems on his machines. I just has a main hydraulic pump rebuilt on his 345B CAT excavator a couple of years back. The guys at the pump shop were shocked to find out he had nearly 10,000 hours on the pump. They said most of those pumps averaged around half of that before neeing to be rebuilt.

In the end, regardless of what your running, a good quality oil (and grease) will do wonders when it comes to extending the life expectancy of a piece of equipment. The problem is most folks never get a a chance experience this because they sell the machine and buy another before it ever becomes an issue.

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