Mobil 1 15w50 in cold weather

[kschachn]

On this note, if a synthetic 5W oil doesn't offer better cold performance than a conventional or blend 5W, then what's the benefit of synthetic oil for cold performance? I thought one of the big selling points for PAO and GTL are cold performance.

They may require less PPD or other additives, or give superior performance beyond the 0W performance requirement. But if an oil meets the requirements of a lower (better) winter rating then it must be labeled as such unless the blender is not following SAE labeling.

But yes if both a synthetic oil and a conventional meet the requirement for a 5W winter rating then the cranking and pumpability will be the same, at least within the limits of the requirement. To see anything substantially better would require a 0W oil but of course that is only evident below about -30 or -35F.

 

[cheesepuffs2]

They may require less PPD or other additives, or give superior performance beyond the 0W performance requirement. But if an oil meets the requirements of a lower (better) winter rating then it must be labeled as such unless the blender is not following SAE labeling.

But yes if both a synthetic oil and a conventional meet the requirement for a 5W winter rating then the cranking and pumpability will be the same, at least within the limits of the requirement. To see anything substantially better would require a 0W oil but of course that is only evident below about -30 or -35F.

Ok I just looked at some Mobil 1 marketing and they boast about fast cold flow, but then you look at the chart and it's M1 0W-40 versus another 5W-40 syn, and then a 10W-40 blend... :

https://www.mobil.com/en/sap/our-pr...ce-and-protection/low-temperature-performance


And then there's this. The video when you scroll down is literally the same cold pour test that people make fun of Project Farm for doing:

https://www.mobil.com/en/lubricants...ce-motor-oil/mobil-1-protects-in-cold-weather

This sours me a bit on Mobil's claims, I have to say.

 

[kschachn]

Ok I just looked at some Mobil 1 marketing and they boast about fast cold flow, but then you look at the chart and it's M1 0W-40 versus another 5W-40 syn, and then a 10W-40 blend... :

https://www.mobil.com/en/sap/our-pr...ce-and-protection/low-temperature-performance


And then there's this. The video when you scroll down is literally the same cold pour test that people make fun of Project Farm for doing:

https://www.mobil.com/en/lubricants...ce-motor-oil/mobil-1-protects-in-cold-weather

This sours me a bit on Mobil's claims, I have to say.

Mhm flow. Looks good on a video.