Quote:
Originally Posted by badassstang  That makes no sense to me. Except for the initial factory fill... I thought most cars suggest synthetic oil with longer changes these days.
And what happens if your cars was not filled with syn at the factory and later you want to go with syn. Are you not supposed to follow the computer. If its 7,500 on dino how far can you go with syn?
10,000
I notice Mobil has a 15K oil these days  |
Well it is better to error on the side of caution when the factor programs from dino. This way if someone runs synthetic you know that they will be safe whereas if it was programed for running syn and someone ran dino you may not be so lucky.
That Mobil 1 oil may be marketed as 15,000 but if you read the small print you will find that they suggest following OEM recommendations. On the other hand, AMSOIL has recommended 15+K miles since 1972. They just released a new 0w-20 that will be excellent in the Ford's using 5w-20.
http://www.modernoils.com/asm_0w20.html