prestone coolant

[Trey T]

I understand the hesitation and it does happen.

I would flush it. It's one of those cheap maintenance. Drain it, run it with distill water for a day, drain it, and then put in new coolant.

[Mark_T]

Originally Posted by Trey T

I understand the hesitation and it does happen.

I would flush it. It's one of those cheap maintenance. Drain it, run it with distill water for a day, drain it, and then put in new coolant.

That's probably good advice if you live in Texas, but depending on where in Canada Max lives, it's getting a little late in the season to risk having no freeze protection, even for a day.

Max, if it was going to be problem, I'm pretty sure you would already know and have a big ol' gelled mess on your hands. If that hasn't happened, I think I would leave the flush until next time you change out your water pump or coolant tank, or do some other work on your cooling system.

What I would do is test the freeze point to make sure that you are adequately protected down to the -35 to -40 range and then call it a day.

[JFP in PA]

Originally Posted by Mark_T

That's probably good advice if you live in Texas, but depending on where in Canada Max lives, it's getting a little late in the season to risk having no freeze protection, even for a day.

Max, if it was going to be problem, I'm pretty sure you would already know and have a big ol' gelled mess on your hands. If that hasn't happened, I think I would leave the flush until next time you change out your water pump or coolant tank, or do some other work on your cooling system.

What I would do is test the freeze point to make sure that you are adequately protected down to the -35 to -40 range and then call it a day.

You should also be aware that gelation problems do not necessarily happen instantly, but often require both heat and circulation to form over a period of time.

[Mark_T]

Originally Posted by JFP in PA

You should also be aware that gelation problems do not necessarily happen instantly, but often require both heat and circulation to form over a period of time.

That's good to know. I thought it would be almost instantaneous if it was going to happen. What do you think, JFP - should he flush the system?

[JFP in PA]

Originally Posted by Mark_T

That's good to know. I thought it would be almost instantaneous if it was going to happen. What do you think, JFP - should he flush the system?

Because we are a shop, I tend to take the "belt and suspenders" approach to this type of problem because we do not want to have a customer stranded somewhere as the result. I would dump and flush the system.

This way, you sleep better at night..............

[BruceH]

Originally Posted by max_asdf

no, it hasnt been clearly answered. if you read my previous post from the dealership, the same dealership is telling me it is OK and IT IS NOT OK to use prestone.

they are also refusing coolant flushes..

Originally Posted by JFP in PA

Because we are a shop, I tend to take the "belt and suspenders" approach to this type of problem because we do not want to have a customer stranded somewhere as the result. I would dump and flush the system.

This way, you sleep better at night..............

Personally, I think Jeff's advice is spot on. I have enough trouble sleeping at night the way it is

[kk2002s]

What is a good flush procedure for the DIY guy without Vacuum filler?
Drain via Drain plug and radiator hoses, refill with Distilled water, burping via Bleeder valve, driving some small period of time? - Follow Bentley procedure basically
Repeat till only clear water is drained?

I initially didn't hesitate in buying Porsche coolant. I topped off maybe 1/4 - 1/3 pint many months back. The other day I topped of with about a 1/2 pint of Distilled water after getting new Cap. I looking in the tank I see green in the bottom. So Now I don't really know what is in there. Whether the previous owner switched to general coolant or not. Now I'm afraid to add my Porsche coolant. So it's time to flush and start with a known Porsche coolant