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Ask Mobil Archive -
Does ExxonMobil Manufacture Goodwrench Motor Oil?
I have been told by two GM dealerships that their Goodwrench oil is made by Mobil. Is this true? If so, is it made to different specs, or is it just regular Mobil Clean 5000?
Blending products for third parties is a common practice in the oil industry and ExxonMobil is no exception.  Nevertheless, that doesn’t mean we use necessarily the same formulations or that we blend ...
Have Group 3 Base Oils Been Substituted for Better PAO Base Oils?
Why does Mobil 1 refuse to specify as to the base oil used in their synthetic products. I remember the Mobil 1 oils in the past proudly proclaimed that it was a PAO based oil. We all know the newer gr...
As we're sure you can understand, ExxonMobil does not discuss formulations publicly,as this information is proprietary. We would rather focus on the advanced technology and proven performance that our...
Difference between 5W-40 Products
My Mercedes-Benz dealer uses Mobil 1 ESP Formula M 5W-40. Is there a difference between the ESP Formula M from the dealership and the Mobil 1 Turbo Diesel Truck 5W-40 for diesel trucks I see at the lo...
Yes, these are totally different products designed for different requirements.
Comparing Mobil 1 High Mileage 10W-30 to Mobil 1 10W-30
Does it make a difference that the new Mobil 1 10W-30 High Mileage is not an energy conserving oil compared to regular Mobil 1 10W-30? I was wondering if this will hurt my gas mileage to use the high ...
Mobil 1 High Mileage 10W-30 has not been tested against the latest fuel economy standards for ILSAC GF-5. As with all things, there are always compromises. We believe the FE (fuel efficiency) differen...
Response to Claims that Products Contain 'Mostly Mineral Oil'
I've seen claims of gas chromatograph analysis of Mobil 1™ Extended Performance 5W-30 SM dated 10-06 that state it is "mostly mineral oil". Realizing that you cannot divulge your exact formulations, w...
Just like other companies, we do not discuss our product formulations for obvious proprietary reasons. Mobil 1™ Extended Performance is formulated using a combination of high performance fluids includ...
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