Hi everybody!
I used AC Delco or Chevron (I forgot) DEX-COOL (6722M specification) in my 94 TA for about 5-7 years (5000 mileage only) but in owner's manual it's written that i have to use GM 1825M(seems to be green) coolant.
It's time to change it. I flushed the system. Drained lots of rust and mud and now i'm runnig clean distilled water.
Dunno what coolant should I choose.
I heard DEX-COOL is a crappy one.
I found in a local store PEAK green coolant which is suitable with 1825M specs
![Green_FullStrength_new.png]( "Green_FullStrength_new.png")
But I also heard that it's shitty too and the system becomes cloggy after it and the antefreeze doesn't look clean and green.
Is it a good idea to use orange DEX-COOL or green PEAK?
Also I heard that old-type green coolant is not good for aluminium heads and radiators.
Maybe I should choose some other coolant? And what specs I should follow, 6722M or 1825M? (94' user manual advices 1825 but 96' user manual advices 6722, both with the same engines e.g. LT1)
P.S. There are lots of european brands in my city and it's hard to find US brands.Maybe I'll try to find some other US coolant if somebody can advice a good one. So now I'm choosing between DEX-COOL and green PEAK. Or i'll have to search european brands within required specification if the above-mentioned fluids are not good and I'll not be able to find some other good US coolant.
So any ideas?
I used AC Delco or Chevron (I forgot) DEX-COOL (6722M specification) in my 94 TA for about 5-7 years (5000 mileage only) but in owner's manual it's written that i have to use GM 1825M(seems to be green) coolant.
It's time to change it. I flushed the system. Drained lots of rust and mud and now i'm runnig clean distilled water.
Dunno what coolant should I choose.
I heard DEX-COOL is a crappy one.
I found in a local store PEAK green coolant which is suitable with 1825M specs
But I also heard that it's shitty too and the system becomes cloggy after it and the antefreeze doesn't look clean and green.
Is it a good idea to use orange DEX-COOL or green PEAK?
Also I heard that old-type green coolant is not good for aluminium heads and radiators.
Maybe I should choose some other coolant? And what specs I should follow, 6722M or 1825M? (94' user manual advices 1825 but 96' user manual advices 6722, both with the same engines e.g. LT1)
P.S. There are lots of european brands in my city and it's hard to find US brands.Maybe I'll try to find some other US coolant if somebody can advice a good one. So now I'm choosing between DEX-COOL and green PEAK. Or i'll have to search european brands within required specification if the above-mentioned fluids are not good and I'll not be able to find some other good US coolant.
So any ideas?
