How often is a radiator flush to be done?
 

I was at oil max getting my oil changed (M1 0w-40 and i brought the OEM filter) just b/c i didnt have the time to do it myself b/c of work and school. And they pitch stuff, and teh guy tried a radiator flush. Now i know that he will try and sell me anything to giv ehim more money. But i havnt done it since i got the car about 13,000 mi ago. And i ahve had to top off the coolant a lil, so how often should it be done. Ill be either doing it (if i can find time) or bringing it to my mechanic, not oil max.

RE: How often is a radiator flush to be done?
 

What year is it?

99
 

99

RE: 99
 

i have a 98 and audi says that its sealed for the whole life of the car, not necessary to change the coolant at all

if there's a leak, fix it and top off..

RE: 99
 

Yup its lifetime fluid, but make sure no one has put the green stuff in like they did on mine. Also, i've heard some opine that even the red/purple stuff should be changed every 100k.

RE: 99
 

Most mechanics recommend changing the coolant every 2 years. ONLY use Pentosin G12 mixed 50/50 with distilled (if you can get distilled deionized) water. Coolant can become corrosive as the alkalinity decreases.

RE: 99
 

2 years minimum its not for life filled its (antifreeze) 50/50 mix , radiator is part of the cooling system

RE: 99
 

so when i have my 90k mi tune up i may want to have it flushed?

RE: 99
 

yes and change the thermostat;)

RE: 99
 

You've had your timing belt changed right?