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TR2/3/3A Right oil

cityslicks

Freshman Member
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This is probably a stupid question but what is the best grade and weight of oil to use in these 4 cylinder motors? Are you guys using synthetic oil?
 

Skellyt

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I've been using 20/50 weight Valvoline VR1 which is a racing oil with added Zinc (for lubrication). You might also add a little Marvel Mystery Oil. I would not use Synthetic oil since the engine tolerance is not as precise as a modern engine.

Tom. 1962 TR3B
 

Coalhod

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2nd that on the oil with Zinc. I recently pulled the head off my Cooper S and was able to check the buckets and checked camshaft spec. with a dial indicator. I had no discernible wear on the original factory hardened camshaft/buckets which was a pleasant surprise!
 

CJD

Yoda
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Mobile one 5W-30...But then I built a very tight motor to go along with thinner oil.
 

GilsTR

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Another vote here for Valvolene VR-1. 20/50.
Been using it for several years and very happy.
I would not suggest the synthetic. Might find even
more spots under your car ( just marking their territory!).
Gil. NoCal
 
Last edited:

Jim_Stevens

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+1 on the 20W50 VR1 Racing oil. A little harder to get these days at your local auto parts store, but available at Grainger of all places!

jim
TS44743L “O”
 
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