Quote:
Originally Posted by Skippermark
I didn’t know about it either, but my son is an auto tech and told me about it, and sure enough when I looked up Mobile 1, Valvoline, and a few other brands, they all had that Dexos logo on them.
I imagine there are some of their oils that aren’t certified, but they’re probably for older cars.
I guess it’s kind of like from the “old” days when I was younger and oil had ratings of SF, SG and the like.
Mobile 1 is a great oil. They really started the push to synthetic, and even today other brands just don’t have the popularity of it.
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Back in the1950s, you'd be aware of a synthetic oil made by
Castrol. Castrol "R" for racing had a strong odor of castor oil, from which it was first synthesized.in Britain.
https://www.motorsportmagazine.com/a.../55/castrol-r/
Valvoline was on the right track with their conventional oil, offering low viscosities of 5, 10, and 20 weights in the early 1970s.
Red Line synthetics arrived on the racing scene in 1980, but had only a low level of market penetration. Their claim to be 100% American-made brings out the patriot in us.
.Their large range of products can be admired, and can be ordered through Amazon:
https://www.amazon.com/s?k=redline+m...l_9enw7937ot_b
A primer on synthetic oils:
https://gmb.net/blog/synthetic-vs-co...%20the%20years.