I meant to post this a while back, but forgot.
I called ExxonMobil in curiousity regarding their 1yr/15K warranty for their EP oils. Here are the responses I received on the phone, going from memory:
1) Can I use M1 EP in the correct grade and go by the OEM drain interval?
No, M1 EP is not for use in cars covered by a warranty
2) If my car is under warranty, and I follow the M1 EP 1yr/15K drain interval, will the warranty still a pply?
No
3) If I use M1 EP 5w30 in a 5w20 app, will the 1yr/15K warranty still apply?
No
This is probably a
for most people though. Forgive me if its a repizzle.
I called ExxonMobil in curiousity regarding their 1yr/15K warranty for their EP oils. Here are the responses I received on the phone, going from memory:
1) Can I use M1 EP in the correct grade and go by the OEM drain interval?
No, M1 EP is not for use in cars covered by a warranty
2) If my car is under warranty, and I follow the M1 EP 1yr/15K drain interval, will the warranty still a pply?
No
3) If I use M1 EP 5w30 in a 5w20 app, will the 1yr/15K warranty still apply?
No
This is probably a