Posted by FBH44 on April 20, 2014 at 07:20:19 from (64.85.214.177):
I've been trying to understand rating systems for oils. I'm beginning to believe after all the unending blah-blah-blah, it is pretty straightforward; Viscosity - Get the correct viscosity; if the engine calls for 10W-30, get it. The 10W means it meets the API winter "W" designation for 10-viscosity. The -30 means it meets the API summer designation for 30-viscosity. If different oils all say 10W-30, their viscosities equal each other, according to their manufacturers. Service - "C" service means it is rated for Compression-ignition engines [diesels]. There are three current designations, CJ-4, CI-4, and CH-4. CC is obsolete. "S" service oils are rated for Spark-ignition engines. Current designations are SN [the latest one], SM, SL and SJ. {Previous S-designations are obsolete. They may work, but just for one example previous S designations may have enough phosphorus to harm your catalytic converter.] CJ-4 CAN be rated for SL or SM service by the maker. CI-4 CAN be rated SL. CH-4 CAN be rated SJ. What I'm coming to believe, if my gas pick-up calls for 10W-30, and if I run a 10W-30 Service SN oil, the rest of it is just anecdotes and advertising.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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