I am 68 years old I was born in San Francisco and grew un in Millbrae and bought my first house in San Bruno and escaped the Bay Area in 2000 . The Bay Area Before is became crowded was a most incredible place to grow up.
Why I Switched to 0W8
- Thread starter DirectRejection
- Start date
If you are driving for delivery as your income source, you probably wants to deliver fast and do more jobs per hour than hypermiling to save a few bucks. If you are not hypermiling you probably shouldn't use these super low visc oil, even if it does not damage your engine the evaporation top off will waste you more money.
I would only run something the manufacturer spec, not something thinner. This likely means 0w20 or 0w16.
I would only run something the manufacturer spec, not something thinner. This likely means 0w20 or 0w16.
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I agree, I would not go any thinner than the manufacturer recommends.
0w8 is too thick, It’s not 1971, personally I’d run a gallon of Boeshield T9 (6cst at 24°). I mean they use it on airplanes so you know it’ll make your car fast.
OVERKILL
$100 Site Donor 2021
Someone tries an oil grade that's not in the manual and gets chastised for it. Might as well shut the forum down and just put a one line statement on the front page of the site saying "Refer to your manual."
I'll leave the thread now.
I personally think it's an interesting experiment. It's a custom lube from a board sponsor, worst that's going to happen is that it blows up. If he's willing to take that risk, which he seems to be fine with, then who am I to chastise him for doing so? It's not like he's being grossly misled by the membership, he took on this exercise of his own volition.
We know this isn't going to be a highly controlled experiment with tear-down testing and measurements. UOA's of course aren't going to tell us much either. The takeaway will mostly be whether it blows up or not and that's fine I think.
It'll either be spectacularly boring, or there will be some fireworks. Guess we'll see
Believe that 3 in one oil kschachn. ..
Yeah know the oil you put in doors that are noisey.
Someone tries an oil grade that's not in the manual and gets chastised for it. Might as well shut the forum down and just put a one line statement on the front page of the site saying "Refer to your manual."
I'll leave the thread now.
Don't leave the thread....
I really appreciate your great insights, knowledge, and experience.
And I agree with you.....
How about people trying something off script ??
Nothing wrong with them doing that.
I think it's actually pretty daggone cool.
If they didn't beat the crap out of this car at redline off the rev-limiter over and over and make the viscosity 0.1 cSt from overheating everything, it probably could go thousands of miles on WD-40 if driven like a grandma.
Whats the Kinematic Viscosity of WD-40 at 150C and the HTHS viscosity? 
WD-40 has a Kinematic Viscosity @ 100° F (38° C): 2.8 cSt (per manufacturer). So KV100 and HTHS might even be lower than 0W-8.Obviously, sitting there and bouncing off the rev-limiter for 3+ minutes is going to kill it from overheating everything. It would probably blow up on much thicker oil too in that situation.
Engines can take a ton of abuse, and even though there might be some accelerated wear going on they will seem to "still run pretty good".
Video starts at the WD-40 part.
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wemay
Site Donor 2023
Can i get those 5 minutes back (that's all i could stomach).
It's fine with me in someone else car. Would definitely raise my anxiety level if it were in mine! 5w30 is thin to me.
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If they didn't beat the crap out of this car at redline off the rev-limiter over and over and make the viscosity 0.1 cSt from overheating everything, it probably could go thousands of miles on WD-40 if driven like a grandma.
Video starts at the WD-40 part.
I think a 0w8 formulated by HPL would actually have a good chance of working in a regularly driven car. It actually has additives in it.
I'm not saying everyone should go out and do this deal.
I do think it's interesting though someone is willing to give a go.
And I'm totally in favor of people having the right to run whatever they want.
It's when choices are being taken away that I have a real big issue with.
^^^ Of course. I posted the WD-40 video to make the point the engines will still "run pretty good" if not abused, even using lubricants so thin and not even formulated for engines if the engine isn't beat to death. I would have liked to see just how long that car would have lasted if it was driven around at no more than 2500 RPM witih low throttle loads and never over-heated. I'm sure there would be much more engine wear and it would still seem to "run pretty good" from the driver's seat.
Great post !
what im saying. thats why i think its silly to burn a bill to catch a quarter.
gathermewool
Site Donor 2025
Are these low viscosity oils ever on sale? 0W-20 can be found for cheap all the time.
I’m afraid the slight savings in gas mileage won’t make up for the added cost of the oil.
I’m afraid the slight savings in gas mileage won’t make up for the added cost of the oil.
ZeeOSix said:
So how much more expensive is this 0W-8 oil? If it cost more (and harder to get) than some more main stream 0W-16 of 0W-20 oils at say Walmart, but saves only 0.7% fuel mileage then that is another factor to add to the "savings" equation. If the 0W-8 causes more oil consumption and a quart or two needs to be added between OCIs, then that's another cost factor. So in the end, he might not actually be saving any money by using 0W-8.
We'll never know from a UOA, that's for sure. 
So how much more expensive is this 0W-8 oil? If it cost more (and harder to get) than some more main stream 0W-16 of 0W-20 oils at say Walmart, but saves only 0.7% fuel mileage then that is another factor to add to the "savings" equation. If the 0W-8 causes more oil consumption and a quart or two needs to be added between OCIs, then that's another cost factor. So in the end, he might not actually be saving any money by using 0W-8.
And imagine if there's more engine wear?
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I agree. It’s an interesting experiment, thankfully not at the expense of my engine. I’m not wishing the OP bad luck by any means. I’m just not sure I see the point of their decision.ZeeOSix said:
So how much more expensive is this 0W-8 oil? If it cost more (and harder to get) than some more main stream 0W-16 of 0W-20 oils at say Walmart, but saves only 0.7% fuel mileage then that is another factor to add to the "savings" equation. If the 0W-8 causes more oil consumption and a quart or two needs to be added between OCIs, then that's another cost factor. So in the end, he might not actually be saving any money by using 0W-8.
And imagine if there's more engine wear?We'll never know from a UOA, that's for sure.
I enjoy reading about the experiments too, operative word, "reading." I wouldn't try it though, not in anything I care about.