Relative Oil Life

[Gene K]

If you used Mobil 1 Advanced Synthetic as a baseline (100), how would you rate the expected life of their other products?
Would this be close?

Mobil Super = 60
Mobil Super Synthetic = 80
Mobil 1 Advanced Syn = 100
Mobil 1 ESP = 120
Mobil 1 EP = 150

 

[Patman]

I would say that is pretty close to it right there

 

[kschachn]

I’d say that wherever you pulled those numbers from is about as valid as any other place.

Considering they are all ExxonMobil products one metric you might employ is a relative ranking of their guarantees for each product. It won’t give you the same numbers of course but it would at least be based on something published.

 

[Bear906]

Mobil's product literature states that their oils offer protection as follows:

Mobil Super Synthetic Blend: 5000 miles
Mobil Super Full Synthetic: 7500 miles
Mobil Full Synthetic: 7500 miles
Mobil 1: 10000 miles
Mobil 1 Advanced Fuel Economy: 10000 miles
Mobil 1 ESP: 20000 miles
Mobil 1 EP: 20000 miles

 

[earthbound]

I'm running esp and ep in the past. I wouldn't dare do even half that suggestion in my Honda...

 

[Jetronic]

There's so many reasons to condemn an oil for further use, I wouldn't dare to rate any oil like that under real conditions in an unknown engine.

 

[Gene K]

I’d say that wherever you pulled those numbers from is about as valid as any other place.

Considering they are all ExxonMobil products one metric you might employ is a relative ranking of their guarantees for each product. It won’t give you the same numbers of course but it would at least be based on something published.

Just a SWAG. I thought of doing as you suggested, but I have my suspicions that the 4x difference between Super and M1 EP may be somewhat market driven.

 

[Glenda W.]

In my mind the ESP is the only one with actual euro long life approvals. I believe the EP states to follow the manufacturers recommendation in the fine print, but I could be wrong.

 

[Bear906]

Just a SWAG. I thought of doing as you suggested, but I have my suspicions that the 4x difference between Super and M1 EP may be somewhat market driven.

Indeed, my Kia never complained when I ran Super to 6K, and my Chevy Cruze did just fine when running dexos-1 Mobil Full Synthetic to 10K.

 

[Gene K]

Mobil's product literature states that their oils offer protection as follows:

Mobil Super Synthetic Blend: 5000 miles
Mobil Super Full Synthetic: 7500 miles
Mobil Full Synthetic: 7500 miles
Mobil 1: 10000 miles
Mobil 1 Advanced Fuel Economy: 10000 miles
Mobil 1 ESP: 20000 miles
Mobil 1 EP: 20000 miles

I think that is somewhat marketing driven. EM will tell you if Super Blend meets the specifications and the OLM calls for 10,000 mi with a long distance highway driven car it will be fine. Using their metrics that would extrapolate to 40,000 mi with M1 EP. They will not tell you that will be fine.

 

[Gene K]

In my mind the ESP is the only one with actual euro long life approvals. I believe the EP states to follow the manufacturers recommendation in the fine print, but I could be wrong.

I agree ESP is likely a better overall product. ESP was blended to meet a tougher overall set of requirements. EP was blended to maximize life at a given price point while meeting SP GF6. My belief is the EP may last a bit longer, but be more of a "one trick pony". I have not seen a test where both were run to end of life under the same conditions.

As to "follow the manufacturers recommendations", that is policy for all of their oils. Super Blend is a 10,000 mi max rated oil in a car that calls for simply an SP GF6 and 10,000 mi max OCI.

 

[kschachn]

I think that is somewhat marketing driven. EM will tell you if Super Blend meets the specifications and the OLM calls for 10,000 mi with a long distance highway driven car it will be fine. Using their metrics that would extrapolate to 40,000 mi with M1 EP. They will not tell you that will be fine.

What’s driving your metrics?

 

[Gene K]

What’s driving your metrics?

Just looking through the data I can find on the same cars running different oils trying to get a handle on the relative lifespan of today's lubricants. Trying to get my SF era mindset up to SP.