Thanks for the temperature information Jon. I know you posted that several times on the old zone. I am also running SAE 90 lube that now has about 60 miles since I changed it. I plan to do a fast as I can run of more than 70 miles as soon as I get this alternator thing figured out. I will take temps and if they are still below the danger level Jon pointed out, I will change to 90w-130 lube and try again. if that works I will go ahead and put the expensive synthetic in, measure the difference and leave it. I will post results as I get things done in the next few months.