I just bought a jug of Valvoline Restore and Protect and a carquest EP bundle for $38.
There used to be a regular code for 25% off any purchase. Then they nerfed speedperks.
RA is my preference but you have to add it to an existing order lest you exceed filter cost in shipping. You can find...
Wow. I had an abused 1ZZFE increase consumption on round 2 of Valvoline Restore and Protect, and then trend sharply down on #3. Decent amount of grit in the filters but nothing like that.
Then the car was totaled.
Not great for the average owner who fills with untreated E10 and leaves it to sit year round. It does work out well for me though, this 1985 HR214's carb just needed a date with the ultrasonic. Cost less than two whopper combos and will outlive the green thing above.
I've tried most of the brands on rockauto, wasn't impressed with any of them. By far the best has been Bosch Icon, they last years for me. The car is sold or totaled before they go bad. Plus they're silent and don't streak.