Same price as non high mileage.
Your thoughts?
Thank you.
Sometimes high mileage could have some kind of seal conditioner or sweller in it. It might have less of certain additives that poisons the catalytic converter for use in an engine that burns oil. I don’t really know, but if I’m wrong someone will correct me, and if I’m right, someone else will correct me.
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Use either one in engines with no leaks or significant oil use. If either are present, then use the high mileage version.
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My thought is that I would use higher-viscosity oil, because these ultra-thin oil recommendations are based more on gaming the fuel economy ratings than on protecting an engine for hundreds of thousands of miles. I would never buy a newer vehicle which recommends 0W20 or thinner oil, so this is really a moot point for me, but I prefer to use 5W30 oil in everything. I might go with 5W20, but nothing thinner.
I think this is bad advice. While I concede part of the issue is trying to get better fleet mileage averages, there has been enough comments here that the thinner oil is necessary for the valve timing mechanism. And the 0 weight is only cold so as soon as the engine temp increases, the effective weight is 20. I have changed mine every 5000 since new with the recommended 0w20 with no problems. If you don’t want to buy it because of that, what can I say?
Sure you can use that Mobil1 oil.
We can spend the next several weeks discussing the latest conspiracy theories about everything, or we can just try to help our fellow motorists get along with their cars. With regard to oil, follow the manufacturers recommendation.
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75 k miles on a well-maintained vehicle isn’t high mileage imo. So I wouldn’t use an oil designed for high mileage cars. It’s a design compromise, some advantages, some disadvantages. Why take on the risks of the disadvantages when there’s little in the way of upside potential? Absent any symptoms, I’d defer using high mileage products until at least around 150K + miles.
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