Yeah to that. But be careful, synthetics are not the complete answer either and synthetics do not really have the requisite chemistry to be a proper ZDDP emulsifier and carrier. If you check most if not all do not have the requisite amount ZDDP for old school hard impact parts. Synthetics do two things very well at both ends of the spectrum. Lube and flow in frigid and high heat conditions contributing to lowering the coefficient of friction in those conditions but do not also do the work that ZDDP is doing in an oil admixture design.
With that said however, too much ZDDP can cause problems too. Diesel oil in a gas engine is not a good idea as well. Although averaging higher ZDDP levels than comparative Gas rated motor oils, they are high in ash content and acids not found in levels that are beneficial for gas motors.
The bottom line here is use the ZDDP additives in a good petroleum based oil which is low in ash and acids designed for gas motors but use it sparingly as too much does not work either and contributes it's own problems.
Thanks in Advance!
David
Born Buick - " I like things just the way they were and drive-em just the way they are "
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