> I have a TR4 transmission with overdrive in my 60 TR3A.
>
> Being in Phoenix I ran 50wt oil during the summer. Now that it has
> gotten chilly for the first 5 minutes of driving it is very difficult
> to get the car into 2nd gear either up or down shifting. After that
> there is no significant problem. Do I need to go to a 30 weight oil?
> Or can I use something like 15w50 year around?
Several local experts recommend Valvoline 20W50 Racing (motor) oil
year-round. I use it in my TR3A and it shifts fine (if a bit stiff) when
cold, even after spending the night in below-freezing temps.
Randall
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