I know that both contain esters, gtl, pao. According to Mobil’s product sheet, the 0w-20 flavor has slightly more phosphorus and zinc. Are the other additives pretty similar? I know that 0w-30 has a much higher HTHS.
How similar are ESP 0w-20 and 0w-30?
- Thread starter Klutch9
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Didn't know they had GTL in the base. I do know that VW 508.00 is a very tough approval to meet, more so than VW 504.00 IIRC. And the difference between the two is that I will use the 0W-30, but will not the 0W-20 
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The correct answer is that the 0w-20 is green. Haha. I’ve used both in our van. Has the 0w-30 in it now. Don’t notice a difference honestly. I know they target different specs but they seem similar: both are API SL and meet SP engine test requirements.Didn't know they had GTL in the base. I do know that VW 508.00 is a very tough approval to meet, more so than VW 504.00 IIRC. And the difference between the two is that I will use the 0W-30, but will not the 0W-20
Both are good oils but one is 50% thicker which usually is the determining factor in which one to use.
Screw that! I am one of those obnoxious hyper-milers that tries to squeeze every last penny out of my fuel economy. Gimme that 0w20 ESP with the 7.9cSt and I'll show you how to milk the MPG all the way to the bank
Patman
Staff member
That’s me tooScrew that! I am one of those obnoxious hyper-milers that tries to squeeze every last penny out of my fuel economy. Gimme that 0w20 ESP with the 7.9cSt and I'll show you how to milk the MPG all the way to the bank
I have been running ESP 0w-20 in my Civic now for just over 2000 km and I know it’s hard to see very minor changes in fuel consumption but it’s nice knowing that it might just be giving me 0.1 MPG better than my previous oils, which were all ever so slightly thicker (by maybe 0.5 cst at 100c)
Zee09
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Me three but I gave up Mobil 1 in the early 80sThat’s me too
You appear to have misinterpreted me. I wasn't saying they should use the 0w30. I was saying that the thickness difference is so great. It usually determines what the person wants to run, whether the 0w20 or 0w30.Screw that! I am one of those obnoxious hyper-milers that tries to squeeze every last penny out of my fuel economy. Gimme that 0w20 ESP with the 7.9cSt and I'll show you how to milk the MPG all the way to the bank
No not at all. Your engine generally shows significantly less wear on a 30 grade oil. Check out some of the UOAs on your engine.
Really? Where the heck is Goldilocks when you need her?
Patman
Staff member
Based upon the approvals it has, ESP 0w-30 has to have a minimum HTHS number of 3.5
I'm getting rid of this car after the 8-year 120,000 mile warranty is up so I don't care about how long the engine lasts
It's an interesting dynamic because the 0W-20 is nearly a 0W-16 while the 0w30 is just a hair below a 0w-40
edyvw
$50 site donor 2025
Yes. It will explode. I would drive it with a bulletproof helmet just in case the rod bearing finds its way through the dashboard.
I think we covered this like 183683683 times.
edyvw
$50 site donor 2025
0W20 2.76cP as far as I remember.
0W30 just bit over 3.5cP. 0W30 is C3 oil which means minimum HTHS is 3.5cP. All approvals there also requoire minimum HTHS of 3.5cP: MB229.51/52, VW 504.00/507.00.
Which illustrates the importance of HTHS.
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