Those pickup owners left that oil in year round!
SAE Paper on Engine Wear with 20 wt. oil
- Thread starter Al
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Quite possible. I can’t help you there
Would you have a link to that oil. That sounds like a great oil for those people who want to be able to say they are following their owner's manual recommendation of 0W-20/5W-20, but who want a HTHS well above 3.
OVERKILL
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Sure:
High Performance Lubricants No VII series engine oils.
Honda 1.5T owners taken note, these may be your oils! :ROFLMAO:
bobistheoilguy.com
That’s laughable! My kids went to school with Earnhardt’s daughter and Larry McReynolds kids. Attended many functions with them. Long discussions about freeing up horsepower and 20 weight oil was always used.
Thanks. I meant, do you have a link to the HPL marketing page for this oil - I was having trouble finding it.
I remember those ads - and turned out Prolong was worse than running out of oil.
And I feel this way - in a proper, “well-designed” engine, I don’t see a problem with 0W-20. But if it’s something that sees severe duty or is a problem child, I’ll use thicker but within reason oil. Done this on 4 cars already.
The reason is not disclosed. A attempt to explain is blindfold guess.
Owen Lucas
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Doesn't the winter rating not really matter that much especially if you are in a warm environment? Even if you do start your vehicle in cold weather, doesn't it warm up and fairly quickly and the thicker weight do the work? So is the argument that the 0w can cause damage during engine warm up?
0w won’t cause damage at warmup; there are just sacrifices made in the formulation that trades some characteristics and performance to make the oil more easily pumped when it’s really, really cold out.
OVERKILL
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Don't think it exists yet, it just came out yesterday.
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Not necessarily. There have been improvements in coating technologies for bearings.
Federal-Mogul Powertrain Debuts IROX® 2 Polymer Bearings
/PRNewswire/ -- Federal-Mogul Powertrain is extending its crankshaft bearing portfolio with a new high performance polymeric coating, IROX® 2, that will debut...www.prnewswire.com
The OEMs didn't start employing special bearing coatings to accommodate thinner oils but rather auto stop/start.
You are behind. They use 20W oil in the races, not just qualifying. Actually a couple of different varieties of 20W depending if it is a restrictor plate race or not. Nice to know their kid's worked in the engine room lol
Yes and became world renowned engine builders. You’re a a smart@$&&!!!
Of all the things I've obsessed over with oil, viscosity was never one of them.
That's the metric I always went by - HT/HS 2.6 was the low point. Anything at that or above that was ok. I never obsessed much over viscosity knowing that 99% of all engines can technically run multiple viscosities without issue.
Owen Lucas
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I don't think long term reliability is a concern for racecars, whatever lasts the race and performs the best is what counts. I don't think the builders would care if the engine exploded 5 seconds after being the first to pass the finish line.
I'm with Buster.
In 1964, Chevrolet recommended either SAE 20 or 20W or 10W-30 for temperatures above 32°F---with no specific upper temperature limit. "For sustained high speed driving when the temperature is above 90°F, SAE 30 or SAE 10W-30 may be used."
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