Hello, newbie here. Picked up a very original’67 Riviera in May and I’m slowly getting it back together. Which oil filter should I use? It came with a Wix 51049 but the local auto parts store lists a Wix 51258. The 51258 is shorter. Any suggestions? Thanks, Tom
The Wix 51049 does not have an anti-drain back valve, you need that on filters that are "sideways". The Wix 51258 has the valve and is the desired filter for Buicks.
I used to use fram until I found out they are about the worst for every product they make. Amsoil filters are also crap. Makes me wonder about their oil.