Tldr - you get what you pay for with oil. ultra platinum, the most expensive brand penzoil sells, was the best. Least friction, most viscous when cold, best viscosity when hot, most cleaning agents contained. Biggest takeaway however is that tainted oil is the worst. Oil is often tainted with gas or coolant or other things so changing oil regularly, keeping up with maintenance, probably most important when keeping engine running.
Tldr - you get what you pay for with oil. ultra platinum, the most expensive brand penzoil sells, was the best. Least friction, most viscous when cold, best viscosity when hot, most cleaning agents contained.
Biggest takeaway however is that tainted oil is the worst. Oil is often tainted with gas or coolant or other things so changing oil regularly, keeping up with maintenance, probably most important when keeping engine running.
https://yewtu.be/watch?v=D3qFfAEp9AU
Great summary.
Great summary.
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