Quote:
Originally Posted by GregAgrest
Dan
I just had a 351/408 stroker built by Keith Craft. They recommend Joe Gibbs Driven HR 10-30W As a matter of fact they require I use it to maintain their warranty
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Same here on my KC FE - however, when I commented about the 15 psi at hot idle they said I could switch to the Joe Gibbs HR 20W-50 to increase it. At first I was planning to but after some further thinking I may stay with the 10W-30 and watch my idle pressure. I wish Joe Gibbs made a 10W-40 HR
oil.
Most of our cars are kept in garages and don't see sub-freezing temperatures (some of you Northerners may be an exception). My garage doesn't typically see anything below about 55 deg in the winter. So, I'm not sure the concern about using a 0 or 5 winter weight
oil in these cars is as great as for a daily driver that may be parked outside overnight.