...any oil manufacturer. Even Mobil1's conditions slink out of coverage.Good luck making a warranty claim withWarren
Be advised that if your vehicle is covered by a warranty, you should follow the vehicle’s oil life sensor or the oil change interval recommended in your owner’s manual to avoid a disruption in your vehicle warranty.
If Mobil1 is confident in their oil being good for 20k miles, why won't they step up and cover when the automaker won't ? Years ago, Valvoline offered a "warranty" but required you to change the oil every 5k miles. Didn't matter if the automaker said 7.5k or used a system that determined the interval. If you didn't follow the 5k rule, no warranty. Point is, it's all marketing fluff.