Posted by Crazy Horse on December 19, 2017 at 09:06:16 from (75.159.240.214):
In Reply to: ZDDP......again posted by Mike(NEOhio) on December 19, 2017 at 06:20:59:
The zinc additive is no longer available in the mass-marketed oil brands, gas or diesel ....... despite what some might say about this one having it or that one having it. Not sure if it just because of the catalytic converter problem or maybe that as well as some other environmental ones. Some small-market oils still have it as an additive, for example some (not all) specialty oils have it like brands for classic hot rods or older-designed high performance engines with flat-surface tappets. But expect to pay a premium price for that stuff. A lot of oil experts (if there is such an animal) claim that owners of older cars and trucks are unnecessarily pushing the panic button about current oils not having it. I'd be guessing that very few of us have an old car, truck, or tractor that could be damaged by using newer everyday oil brands. When you think of it, despite not having the zinc additive, look at all the other lubricating additives that modern oil has that weren't there 50 years ago.
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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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