damo sti Member ISDC Club Member May 19, 2026 #1 Changing thermostat and was wondering what coolant should I use to put back in sti hawkeye
BazGF8 Sti Wagon ISDC Club Member May 19, 2026 #2 Same colour as what came out of it or you can add Prestone as it mixes with all of them without turning to sludge
Same colour as what came out of it or you can add Prestone as it mixes with all of them without turning to sludge
