kailan dpat palitan ang tubig sa radiator with coolant

[jansky]

kailan nga ba dapat? or forever na yan just add more water and coolant?

[[archie]]

in my case sir, i prefer to drain all fluids every 40k or four years (which ever comes first). mas ok pa din preventive kesa corrective.

[jmpet626]

ano ano po ung mga fluids na un?

[judoman]

sabi po nila naninigas yung coolant sa engine block kaya mas ok siguro drain lahat? ano po ba yung coolant na gamit nyo?

[userfriendly]

Answer depends on your coolant and engine manufacturer.

Green coolant or ethyl glycol 2 years life. Common brands are prestone, total, whiz etc...

Dexcool or orange coolant is supposed to be 5 years or 100,000 kms. Personally, I'll still change every 2 years. Normally found on GM cars. Caltex is the manufacturer. Ford prohibits the use of this coolant on their engines.

Toyota uses red coolant. I forgot idf its HOAT or OAT. Also forgot the reccomended change interval. Parang 2 years din but I may be wrong.

No idea on Honda, Mitsu, German and Korean cars.

Bottom line check your manual.