Mobil 1 or Delvac 1?

[Ron-Indy]

While both Mobil 1 and Mobil's Delvac 1 are highly regarded oils, it seems Delvac 1 has a slight edge in the opinion polls. Given the similarity in the additive package (especially when compared to M1 15w-50) and the fact that it is moly-less (seemingly a valuable additive) why is Delvac 1 thought of as superior, even if only slightly? Is it perhaps the viscosity range, or is there more to the story? Thanks

 

[J]

quote:

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Originally posted by Ron-Indy: Given the similarity in the additive package (especially when compared to M1 15w-50) and the fact that it is moly-less (seemingly a valuable additive) why is Delvac 1 thought of as superior, even if only slightly? Is it perhaps the viscosity range, or is there more to the story? Thanks

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Hi, Thanks! Now, I have renewed respect for Mobil 1 15W-50. It's a viscosity which gets short shrift because of the high high-number of 50. If you compare Delvac 1 to 0W-40, Delvac 1 has a more potent additive package and a higher HT/HS viscosity. But, 0W-40, 15W-50 and Delvac 1 are _all_ excellent oils. You can't go wrong with any one of them. Jae

 

[Alex D]

Does anyone here run M1 15W-50 in modern Ford and Chevy engines such as the 4.6 SOHC, LT1 and LS style engines?? Is this adviseable at least for the summer months?? Do you see any problems with the significant higher viscosity of the 15-50 vs. the 10-30?

 

[boxcartommie22]

i been running devac 1 in both my 4.6 interceptor and 5.4 expy even in the winter here in colorado these engines love this oil

 

[buster]

You can definitely run this in those engines, especially going by what they run in New Zealand and Australia, but you will lose out big time with gas mileage and HP. In fact, it might be just to thick to the point that the engine/oil will be more hot defeating the benefits of it protecting well.

 

[boxcartommie22]

my engines run cooler

 

[sprintman]

My economy is better with D1/M1 0W40 mix than 10W30 dino. **** sight quieter too!