Water Wetter
#31
Administrator - "Tyson"
Lifetime Rennlist
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Lifetime Rennlist
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+1
Either the Valvoline or Mercedes branded stuff
When I picked up my 2003 Yukon XL it quickly developed a water pump leak (that's why it was at the auction....) Upon removing the pump i saw traces of pink / green coolant. Suspecting the previous owner was topping it off I knew a flush was in order.
I must have put through 15+ gallons of distilled water through the block, radiator and heater core. 30K miles later, all has been good and I refilled with G05.
Either the Valvoline or Mercedes branded stuff
I must have put through 15+ gallons of distilled water through the block, radiator and heater core. 30K miles later, all has been good and I refilled with G05.