Coolant ?

[MelissaInNJ]

My coolant level is at the very low end of normal. I need to top off. I have the old coolant as my Boxster is a 97. I got the new coolant from the dealer. I know many people have said don't mix them, but the dealer said it was okay and that they have done it there many many times. So I am following their advice. As for topping it off, do I just add it straight as is, or do I need to do equal parts with distilled water?

Thanks!

Melissa

Edited February 23, 2006 by MelissaInNJ

[Loren]

The two Porsche coolants can be mixed.

Yes, it is best to mix 50-50 distilled water and coolant. If you don't have any coolant and the level is not too low then just adding distilled water will have little effect on the coolant protection.

50% coolant/water gives protection down to -31°F (-35°C)

[CosmosC4S]

The two Porsche coolants can be mixed.

Yes, it is best to mix 50-50 distilled water and coolant. If you don't have any coolant and the level is not too low then just adding distilled water will have little effect on the coolant protection.

50% coolant/water gives protection down to -31°F (-35°C)

Loren, my coolant level was at minimum level and I topped it up to the Max line with my tap water.

My water is filtered drinking water and also has passed thru' the water softener.

I hope it's all right, being the amount added was not significant, and I live in Florida?

[mikefocke]

But keep an eye on the level ....

And if it drops again, you have to begin solving the reason why it drops. You can go years without needing to top off.

Is your cap on tight? Any condensation on the trunk lid? Any moisture on or under the carpet in the trunk?

[rdragon]

it lasts years? should there be no condensation at all? i always seem to have some condensation on the trunk lid (is that normal)? cap is on tight. thanks.

[fasterjames]

The two Porsche coolants can be mixed.

Yes, it is best to mix 50-50 distilled water and coolant. If you don't have any coolant and the level is not too low then just adding distilled water will have little effect on the coolant protection.

50% coolant/water gives protection down to -31°F (-35°C)

I came to this conclusion after researching it last fall when my Independent Porsche Technician didn't twist my cap on correctly and I lost 1 gallon of mix. I too recommend replacing it with 50/50 mix because of the special anti-corrosive properties in the Porsche coolant. Not to mention even filtered water might accelerate corrosion.

Here is the wikopedia version:

Distilled water is also commonly used to top up lead acid batteries used in cars and trucks. The presence of other ions commonly found in tap water will cause a drastic reduction in its lifespan.

Distilled water is preferable to tap water for use in automotive cooling systems. The minerals and ions typically found in tap water can be corrosive to internal engine components, and can cause a more rapid depletion of the anti-corrosion additives found in most antifreeze formulations.

[RascalRuss]

What does condensation in the trunk lid mean (around the fluid top up area) I always get this, quite an amount too.

Im worried now, can some one explain?

many thanks

Russ