I agree with welding man.I remember a long time ago the place I worked got a deal on some oil called Cummins Blue.Not all of the trucks ,but some of them used oil.We switched back to Rotella 15-40 after maybe a year and some that were burning oil,quit burning oil.Some that burned a lot of oil burned less oil.I dont remember any burning more oil and we had about 30 trucks or more considering we changed oil for some regular customers.Maybe 40 or 50 different trucks.On a lot smaller scale Ive seen the same thing with Delo oil.I tried it a couple of times in my truck but it burned more of it so I switched back.Ive heard it the other way too.Of course you cant always believe what you hear.Trucks will burn more oil if you idle a lot,or have a bad leak,or get it hot pulling a lot of mountains,so unless you stay right after it,it would be hard to say whether there was much difference or not.Somebody who always went the same route would know better than me because I hardly ever went to the same place in 15 years of driving,or at least not enough to tell a difference in something like that.Also different engines might be different too.I mostly had Cummins with a few Detroits sprinkled in there,and Detroits might like it better,at least I heard that somewhere. From being a mechanic back in the 1980s,Rotella was a big improvement over the old series 3,or 30 weight for diesels.Rotella would make a set of bearings last about 3 times longer than series 3.Some engines ran a million miles before an overhaul using Rotella 15-40.I would think hard and study a lot before I switched.If its good enough it doesnt matter what the other stuff costs,you werent going to buy it anyway is how I look at it,unless there is a big difference,and then Id wonder if there was something wrong with it.A diesel costs a lot to fix over something like oil.Ive heard,though it was a long time ago,about engines blowing up because of oil being bad,or the wrong additives,or something.Delo ought to be good oil,but I dont know about changing oil on a engine either.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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