CSK 911 C4S

Pentofrost E from Pentosin

Well after all the talk about heaters not working and finding out how the little gizmo works in our coolant bottles, I found my indicator resting on the "MIN" mark.

So what kind of coolant is in our cars? The search begins.

I didn't get any hits on rennlist or other forums that answered my question so I turned to the net and O'reilly auto parts web site popped up and using their search feature is showed that Pentofrost E from Pentosin is the fluid to use. Going a little further searching the Pentosin web site I found the spec sheet referencing the proper Porsche spec number.

My dealer is about an hour away so I ordered a bottle from O'reilly and had it delivered to my local store. I had it in my hands in 2 hours since their warehouse is local.

http://www.pentosin.net/specsheets/Pentofrost_E.pdf

LexVan

Don't use it. Only use the Porsche stuff.

You can top up your coolant level with distilled water. Probably less than 20 ounces needed.

extanker

i am sure you believe these cars are built by and for the gods and that is the reason you did not put a little local [gasp] water in it........and no more HBO drama.

CSK 911 C4S

I wish that our coolant bottles were more visible to determine if a little water could be used with out to much dilution. With it falling below freezing daily a 50/50 mix is just a good piece of mind.

HBO does have quite a bit of drama, I think a forum like this is more like PBS.

LexVan

The car holds over 800 ounces of coolant. 20 ounces of distilled water to bring the OCD bobber into the middle zone is a non issue regarding freeze protection.

Never add tap water to your cars.

In an emergency, grab a bottle of bottled water from a 7-11. I like Fuji because it's shape.

john45in

LexVan, what about replacing the coolant-every 4years?

LexVan

I'd take the Porsche interval and cut in 1/2.

So, for me, in 4 years, that's about 50,000 miles. I'll do it before 60,000 for sure.

For a low mileage garage queen, I'd say about 6 years.

Lease. Follow the book. Just don't buy it at lease termination.

ipse dixit

Why do you need to fill?

The factory fill level at time of delivery, I believe, is at the MIN mark.

CSK 911 C4S

There is no empty mark so it needs to be somewhere in between the 2 marks.

Mine was fully setting on "Min" and it took less then 16oz to put it between the 2 marks.

http://www.porscheownersmanuals.com/...carrera/6/221/

ipse dixit

I think that's normal.

Like the manual says, only fill if you get a warning light.

CSK 911 C4S

Just being a bit proactive.... hate to be in the middle of BFE and a warning light pop on. I might think something broke.

Porsche_nuts

Mine always seems to be at the min mark after it has sat for a couple of days. Even after I filled it up towards the max mark a few day later, it was back at min. Took it in, but dealer tested and said no leaks. SA said same thing, unless you get a warning light, don't worry about it.

I ordered and used the expensive Porsche stuff.

CSK 911 C4S

I'll monitor it a bit and see where it goes.

The car might overflow after heated up and reset it self and end up at the min mark. If that happens I won't top off again.

Dude174

You could also get a liter from suncoast or pelican parts to have on hand when you order other stuff. As the level goes down, refill at half with distilled water and you have 50/50! Of course I realize I'm a bit old fashioned, but I do live a few hours from the dealer so like to have things on hand.