That's the exact procedure I used last time. *sigh* I guess it's that time again. I don't want to fork over the $$ for MB Citric acid, but I do want something stronger than the Prestone. Maybe I'll just read labels and get the best of what's there at wal-mart.
Thanks for the suggestions. Now, which brand t-stat to get? I have found Wahler, Behr, and maybe a couple others, all within about 3 dollars of each other.
TIA