View Full Version : type of oil

05-11-12, 10:26 PM
I misplaced my owners manual and it's time for an oil change. I can't, for the life of me, remember what I'm suppose to give her. It's a 72 fleetwood. Help please!


I wanna say its 10w-30 but i dont want to guess.

Reverend Hearse
05-12-12, 01:16 AM
10-30 is great 5-30 is what I run in all of my motors these days though...

05-13-12, 10:48 AM
Modern oil doesn't have enough zinc to protect your cam and lifters. You can google it but most old car drivers run some kind of diesel engine oil like 15-40 or 5w-40 synthetic unless you have to run catalytic converters.

05-13-12, 02:35 PM
Thanks guys. I put 5w-30 in her this time. I'll look into what yo brought up cadillac_al. The engine needs to be rebuilt and thouroughly cleaned soon so I'm not to worried about it.

05-13-12, 10:32 PM
You need a zink additive with modern oil.. This oil does not protect the old motor with a flat tappet cam... Put in a can of STP or any additive with zink...google it..

05-14-12, 12:14 AM
Ill pick some up. Thanks.


I use the car very little. Probably less than a 1,000 miles between oil changes. Would I still need the additive? I heard that the zinc content in modern oils would be enough for lower miles between changes. Any take on this?

05-14-12, 08:19 PM
Modern oil with the lac of zink will not protect the metal to metal contact of a flat tappet cam.. you need the zink. They slowly took it out to reduce emissions.. Do some research , see what the flat tappet cam makers are telling you to do.

05-16-12, 02:17 PM
I was googleing all of this and came across Valvoline VR-1. It's a racing oil. Anyone here ever use it?

05-17-12, 11:05 PM
VR1 has got zink and will work fine...