Oils and additives have been debated for decades and will continue to be for years to come. Everyone is comfortable with a certain oil or additive and others see it another way. For example, I was warned about Pennzoil back in the 70's by many master mechanics I trusted. I was told by these mechanics they could always tell when Pennzoil was used in an engine because of the wax build-up and golden color all over the oil pan and crankcase. Too much paraffin so avoid I was told and use Valvoline instead. Where I work, we sell many brands of oil and Pennzoil is at the bottom of the list by many customers I speak with. Yet, many trust it and have used it for years as someone pointed out. To me, use what YOU think is best and ignore others' opinions. Do your own research and then try and come up with your own conclusions!
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