Coolant Query: Preventive Drain and Fill vs. Fully Flush? (Page 3/3) Vintage-Nut MAR 22, 08:57 PM quote by sleek fiero If you really want to accurately test go to your autoparts store and get a test strip kit which can test freeze point and ph [cut] I got my answers: Use pH strips to keep an eye on the coolant, when it is going ‘South’ - use a Full Flush Thank-you guys for my stupidity, VN sleek fiero MAR 22, 09:16 PM Haha There's no stupidity just a heathy appetite for knowledge. And guaranteed we all need to ask our fellow owners for help at times. sleek