• Hey Guest!
    British Car Forum has been supporting enthusiasts for over 25 years by providing a great place to share our love for British cars. You can support our efforts by upgrading your membership for less than the dues of most car clubs. There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Upgraded members don't see this banner, nor will you see the Google ads that appear on the site.)
Tips
Tips

TR4/4A tr4a oil

Share this page

G

grant tr4a

Member
Offline
What oil should I use in my tr4a. It has original motor and oil filter canister with 89k miles. As far as I know there has been no engine work done. I am happy with the way it runs. Your addvice will be appreciated, also I live in western washington. thank you grant:rolleye:
 
20W50 is the usual recommendation. I like Valvoline VR1, as it has good levels of ZDDP, and is readily available.
 
That far north, I might give 10W30 a try first and see how your hot idle oil pressure is. But with nearly 90k, I think the 20W50 is probably better.

I also like Valvoline, though I'm not convinced about the need for extra ZDDP in a stock TR engine.
 
Thanks for the suggestions. I switched to 20w50 valvoline vr1 and it improved the oil pressure about 10# at idle to 30# and the up to 55# running down the road. I am not sure if I had it before but now I get a puff of blue smoke each time I start the engine. Is this normal for a 90k engine? grant
 
I wouldn't call it "normal", but I also wouldn't go tearing the engine down just for that. Save up your nickles and dimes; then rebuild when you've got more symptoms (smoke all the time, low and uneven compression readings, knocking noises at startup, etc.)
 
Back
Top