Mobil 1 Classic 0W30: best cold weather oil?

Pour point: -65F. Out of character, Mobil even posted an MRV at -40F for this oil: 16200. Both numbers beat Ravenol SSO 0W-30 for a record low. This may be the best cold weather oil you can buy, especially if you need to meet a Ford specification: It is one of only three oils available in the US that “Meets or exceeds” Ford’s WSS-M2C963-A1 Spec. (the others are Mobil 1 AFE 0W30 and Castrol Edge 0W-30 DX). In comparison, Mobil 1 AFE 0W-30 currently claims only a -43F pour point, and Castrol 0W-30 DX only -42F.

 

[Kalle.J]

You did not answer my question: would you push the start button?

Diesel or Gasoline?

 

[Snagglefoot]

In what situation? And what button?

Posting #14.

 

[Revving2Redline]

Sorry, but I couldn't resist 0w30 & 0w40

 

[Kalle.J]

Sorry, but I couldn't resist 0w30 & 0w40

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View attachment 201501

Rookie numbers: 54@-35

Swedish diesel mix is "certified / tested" down to -25.6 degrees F. Starting below that temprature can be problematic without a external heat source.

 

[Revving2Redline]

Rookie numbers: 54@-35

View attachment 201503
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, maybe but the hths of the RL is way ahead of most and I'm sure has more ester than Ravenol.

 

[Alien]

What he means is that pourpoint has low correlation with pumpability at low temps.
This is more relevant:

View attachment 201492

Thanks, but I already knew that. The problem is when you are trying to pick an oil that will lubricate your engine at temperatures below -40, the MRV number is of little help, since it is only tested at -40. The oil may be a solid brick at -41 but could still have an acceptable MRV at -40. So below -40F we have to gamble on whether the oil can lubricate the engine or not, since there is no test data. And the only data we have to help with that gamble is the reported pour point, since it assures that the oil will at least be a liquid down to that temperature.

 

[Kalle.J]

Some form of external heat source is the answer. Fuel-heater or electric.

 

[Alien]

In what situation? And what button?

"Imagine that you were sitting in your truck and the dashboard temperature display showed a temperature of -45F and you know that the Pour Point of the oil in your pan is -40F. Would you push the start button?"

 

[Kalle.J]

Yes. Would not expect it to start though. If parked at home the water heater would bring the temps up.
Started fine last year -18C / 0F on 5W, no pre-heat.

 

[ka9mnx]

Posting #14.

Thanks.

I answered his question. He is stuck on pour point.

I have started vehicles at -45F and driven off to work.

The last vehicle I had with push button start was my 1962 Austin Healy Sprite. It's todays fad.

 

[ka9mnx]

"Imagine that you were sitting in your truck and the dashboard temperature display showed a temperature of -45F and you know that the Pour Point of the oil in your pan is -40F. Would you push the start button?"

I'm done with you..
Over and Out.

 

[Kalle.J]

, maybe but the hths of the RL is way ahead of most and I'm sure has more ester than Ravenol.

You need high HTHS at -60F ?
Best joke i've heard this year

 

[Revving2Redline]

You need high HTHS at -60F ?

maybe.... remember this.

 

[Kalle.J]

Literally 0 chance of reaching full operating temp if there is any air flow.

Now here is some good MRV and great CCS numbers.
RAVENOL SSL SAE 0W-40

 

[02zx9r rev2]

I for one won’t be driving in weather below 0 so I’m glad I don’t have to worry about that

 

[Chief119]

maybe.... remember this.

No telling how many years it was sitting there and just got in it and floored it. Definitely must have HPL premium plus in it. It had to, right?

 

[Snagglefoot]

Fuel injection really helped with cold starts. I imagine direct injection helps even more. As for diesels out in the bush, we would idle them all night.

 

[Kalle.J]

Fuel injection really helped with cold starts. I imagine direct injection helps even more. As for diesels out in the bush, we would idle them all night.

Electronic spark control aswell. Lots of programmable features before and after engine operation.
https://saemobilus.sae.org/content/890044/

 

[Cary]

Literally 0 chance of reaching full operating temp if there is any air flow.

Now here is some good MRV and great CCS numbers.
RAVENOL SSL SAE 0W-40

View attachment 201524

Watching some of the videos of the winterizing they do of the vehicles in Siberia to keep them functional is interesting. Basically wrapping the engine compartment with tarps to keep all airflow from cooling, plexiglass extra windows to create double glazed windows that don’t freeze while driving.

 

[Snagglefoot]

I plug in starting at -5 F and never bother to do a cold start at -40 without being plugged in. If it’s parked at work during a -30 F afternoon, ( there are no plugs available) we start it up at lunch and let it idle for a while. All these low temps are rare.