HT4100 4.1, 4.5, 4.9 Discussion, oil in Cadillac Engine Discussion; Just wanted to know whats the best oil for cadillacs?? I have a 94 caddy deville 4.9 just want to ...
- 03-25-07 07:17 PM #1Cadillac Owners Member
- Automobile(s): 94 sedan deville
- Join Date
- Jul 2004
- washington dc
Just wanted to know whats the best oil for cadillacs??
I have a 94 caddy deville 4.9 just want to know whats the best oil to use....
- 03-25-07 07:52 PM #2
- 03-25-07 08:40 PM #3
This is a loaded question that's been discussed many times here. I'd suggest first reading some previous posts by doing a forum search.
- 03-25-07 09:54 PM #4
That last thread kinda covererd it pretty quick.
- 03-26-07 04:50 PM #5Cadillac Owners Fanatic
- Automobile(s): 1992 Tripple Black Allante, RIP 98 catera
- Join Date
- Mar 2004
how many miles, if less than 75k, mobil one or penzoil platinum, if over 150k, then shell rotella, if anywhere in between, either...thats just a very quick reccomendation though,
- 04-02-07 12:10 AM #6
In my two Deville's I've used Penzoil, Valvoline, and the Shell Rotella. Since I've switched to Shell gas because of the Top Tier recommendation, I figure the Shell oil is good too. But since any oil I've seen conforms to 'OEM specifications' I don't think it makes a difference if you change every 3k miles like you're supposed to. Synthetic oil may hold its viscosity longer, it costs more so there really isn't any savings. And since 4.9's don't rev beyond 4000 rpm, I don't think synthetic is needed. Just use the Shell stuff.