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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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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