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Re: which is the better lube straight or multi-weight ?


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Posted by Bill(Wis) on November 12, 2011 at 16:02:08 from (184.75.123.14):

In Reply to: which is the better lube straight or multi-weight ? posted by buickanddeere on November 12, 2011 at 09:42:34:

I don't know of any auto/truck or tractor manufacturers that recommend straight weight oil anymore. As far as synthetic is concerned, my 2011 truck maintenance guide specifies 5000 mile oil changes w/filter when using conventional oil and 10000 mile oil/filter changes when using synthetic unless E85 is used more than 50% of the time. Then cut those above numbers in half for both conventional and synthetic. I'm sure BMW has done a lot of research on this and has a wealth of information. Is it accessible? Here's a new one, to me. Tractor manufactureres are pushing their own oil now because they say the traditional thinking, which has been pretty much to use oil recommended for trucks, i.e; Rotella, etc., is not valid because tractors use approximately 75% of their available engine power most of the time whereas trucks use less than 40%. Is this a valid assumption? Are their oils any better? They say they have been developed exclusively for farm tractor use. I just bought a new 125 HP tractor and intend to use the manufactureres oil. Why? For one thing, it costs about the same as Rotella or Delo.


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