Originally Posted By: Back40
I have 2 high mileage vehicles(05 Tacoma 4.0 @120k & 07 Highlander 2.4 @150k). No oil leaks or consumption with 5k oci of M1 Super. Should I switch to a high mileage formula?
What's M1 Super? Is it Mobil 1 or Mobil Super 5000? Whatever it is, if you have no consumption issues, I'd keep doing what you're doing. Switch to a High Mileage oil when you need to.