Originally Posted By: Marco620
Go Quaker State conventional and Pennzoil Conventional in winter.
Screw that. Quaker State Conventional just as good as Pennzoil Conventional
Originally Posted By: Nick1994
$13.97 for 5 quarts of Quaker State, $22.65 for 5 quarts of Castrol Edge.
If each oil change uses an $8 filter:
I can get Pennzoil Conventional $13~ at Rural King. Never tried Quaker State Ultimate Durability
5,000 mile OCI with Quaker State Advanced Durability, $.004394 per mile
7,500 mile OCI with Castrol Edge, $.004087 per mile
So, actually cheaper with synthetic.