Using Mobil 1 Turbo Diesel Truck oil in gas cars.

[atikovi]

Saw this comment on a Lotus forum. Any validity?

I don't get how people can put diesel oil in their Elises. Diesel engines are very low revving compared to a gasoline engine and the Lotus can be, if driven that way, a VERY high revving engine. Fluid film shear stability is a huge concern with such fast spinning engines and those who design diesel oils have a much different design target than those who design oils for high revving engines. They are too completely different animals.

 

[RooflessVW]

Don't believe everything you read on the internet.

 

[atikovi]

That's why I'm asking here and to set him straight.

 

[RooflessVW]

That's why I'm asking here and to set him straight.

Plenty of threads on using HDEO in gasoline engines.

You've been here longer than I have. Surely you must have caught a few of them?

 

[atikovi]

No, I rarely visit or post in the motor oil sections.

 

[drtyler]

Doesn’t that oil have a gasoline engine rating? It used to, but I guess it could have changed.

 

[atikovi]

Doesn’t that oil have a gasoline engine rating? It used to, but I guess it could have changed.

SN

 

[drtyler]

SN

Well then its fine to run in a gas engine that requires SN or earlier.

 

[atikovi]

OK

 

[simple_gifts]

I would think a 15W-40 would be about as shear stable as a multigrade could be.

 

[Snagglefoot]

Here is a spec sheet that had a 2023 copy-write date.

 

[atikovi]

I would think a 15W-40 would be about as shear stable as a multigrade could be.

Except it's a 5W40.

 

[tnt_motorsports]

Maybe I got this backwards but I think diesels would be harder on oil than gasoline powered cars given the operating conditions not to mention the high torque and horsepower. Even the highest horsepower gasoline powered engines don’t come close to the compression ratios of diesel engines.

Just my $0.02

 

[jetman]

Diesels have compression ratios around 20 to 1 and usually a big turbo. Diesel oil is not lacking.

 

[LazyDog]

I been using Rotellas T6 5W-40 in Volvo Turbo car for years w/ out any problems on engine or turbo.

It is a favorite oil for WRX cars in some folks.

 

[Deleted member 89374]

Saw this comment on a Lotus forum. Any validity?

How is your Lotus doing, by the way?

 

[atikovi]

It's doing fine. Just had it out on the road for the first time in 5 years.

 

[JavierH19]

The only thing about it is that it's high saps and it could be an issue with lspi since that's usually an issue with direct injected turbo engines. More so to do with the turbo as that exasperates it. But if it isn't lspi prone then it's great to use.

2008 VW GTI, Mobil 1 5w40 TDT, 9922 miles

Here is the latest oil analysis of my GTI. This latest scan is with Mobil 1 TDT, the previous one with Amsoil Series 3000 5w30, and the original with Mobil 1 0w40. I am running Shell Rotella 5w40 now.

bobistheoilguy.com

 

[ammolab]

I used Rotella T6 HDEO in my wife’s NINJA 250. I Rode it all day across Texas to NM @ 9000+ RPM. It is fine for a high revving engine.

 

[ka9mnx]

I wouldn't, and don't, use Diesel oil in a gasoline engine. They are formulated for an entirely different operating and contamination environment.