Best Coolant

[Lawsonmh15]

Doing a coolant flush today, and I'm wondering what standards to stick to when looking for a joint to do the flush. I've heard Subie coolant is a bit diff. than the run of the mill.

 

I know ALOT of people swear by Mobil 1... What brand for coolant? Immediate answers are greatly appreciated.

[Setright]

I have had good results using Shell's pre-mixed 50/50 solution.

 

Castrol doesn't seem to last - had a lab tech analyse it cause it was loosing colour and it was turning acidic after only a few thousand miles.

 

 

Be aware that you MUST stick with the glycol based stuff, which usually means green or blue.

 

Red and orange has a different base and will sludge up when mixed with the old coolant.

[Lawsonmh15]

I have had good results using Shell's pre-mixed 50/50 solution.

 

Castrol doesn't seem to last - had a lab tech analyse it cause it was loosing colour and it was turning acidic after only a few thousand miles.

 

 

Be aware that you MUST stick with the glycol based stuff, which usually means green or blue.

 

Red and orange has a different base and will sludge up when mixed with the old coolant.

 

Thanks for the advice. I went to a local indie joint that wanted $60 but the coolant had no brand (no thanks:rolleyes:). Kid told me it was "The green kind". I proceeded to Grease Monkey. They wanted $70 for prestone EG. No conditioner though.

 

After having done a search over at the NASIOC, I found a SWEET thread on the importance of a good coolant and conditioner, and problems that may result from ignorance. Check it out. http://forums.nasioc.com/forums/showthread.php?t=504002&highlight=Radiator+Flush

 

I remembered that John Elway Subaru South was down the street and I went there because neither of the places had a conditioner. It was only $1.29. The service dept. didn't seem busy so inquired as to how much a coolant flush was. $50:banana:. SOLD. I also picked up an external tranny filter. However, it took them close to 2 hours to do the service (will schedule next time). But the service manager gave me $10 off the flush, and $10 off the tranny filter . These guys honor ANY competitors coupons!!! The have gotten coupons for $5 oil changes and taken the hit on it. I couldn't believe it. I will be frequenting that joint for ANY service issues.

 

Almost forgot. Before having the flush and condioner, my fans were kicking on after about 30-45 seconds of idling. After... I idled for about 5 mins before I got bored and shut her down. COULDN'T believe it.