My wife drives a 2003 Elantra, which is still under warranty.
When in TN, the dealer used Pennzoil 10/30 always, and since we moved to NC, the new dealer changed her oil with Castrol GTX 10/30. (I didn't see it until she got home, thought idle was a bit rougher than usual, but not always...drives/sounds pretty normal).
(1)is this something to be conCerned about? Are these OILS that different from each other, or is one better?..
(2)btw. the "old" dealer had 3750 mile OCI's and the new one(using GTX) had 4000 mile OCI's scheduled.
(the car has a lot of highway miles, but will run short-trips from now on)
When in TN, the dealer used Pennzoil 10/30 always, and since we moved to NC, the new dealer changed her oil with Castrol GTX 10/30. (I didn't see it until she got home, thought idle was a bit rougher than usual, but not always...drives/sounds pretty normal).
(1)is this something to be conCerned about? Are these OILS that different from each other, or is one better?..
(2)btw. the "old" dealer had 3750 mile OCI's and the new one(using GTX) had 4000 mile OCI's scheduled.
(the car has a lot of highway miles, but will run short-trips from now on)