Engine Coolant

[DPM]

Originally Posted by Transonic

Anyone ever use Evan's Racing Coolant on any of their cars before? I used it on my RX-7 and it was like night & day.

I use Evans NPG-R It has a 400 degree boil point and there are no hot spots in the system. It maintains an even temperature in the entire cooling system which evenly distributes the heat and reduces heat stress to the weaker parts of the system, which is where the hot spots collect. It's good to -10 degrees too for winter storage. I've never had a heat issue with this. It's great stuff but a little pricey. $32.50 per gallon and the entire system is run with it straight no water. You have to purge the entire system with their prep system additive before filling.

[RoadDad]

I checked on this website for my "local" Havoline distributors:

http://www.texaco.com/worldwide/nort...er_locator.asp

with success at finding XLC coolant from two but would have to buy it by the case (6 gallons).

[necro]

I went to: Autozone, PepBoys Kragen, a speciality car part store.
They did not have:
Motul brake fluid
Havoline XLC
5 W40 (regardless of brand)

And for laughs I asked for an oil /air filter.....

On the plus side the had the power steering fluid!!!

[tvacc]

Originally Posted by necro

I went to: Autozone, PepBoys Kragen, a speciality car part store.
They did not have:
Motul brake fluid
Havoline XLC
5 W40 (regardless of brand)

And for laughs I asked for an oil /air filter.....

On the plus side the had the power steering fluid!!!

Same here. You all say it is so easy to get....not in my area...Buffalo NY

[TimMullen]

Originally Posted by tvacc

Same here. You all say it is so easy to get....not in my area...Buffalo NY

Have you tried Wal-Mart? My local Wal-Mart has the coolant, as does the Advance Auto store (like an Autozone).

The proper oil, however, is very hard to find - any place...

[RoadDad]

I have been told by Chevron (Havoline) and by Lotus that the actual Havoline XLC is not available in the US. The available version is Havoline Extended Life DexCool, which apparently is different. I have learned that any ethylene glycol antifreeze with OAT corrosion inhibitors is fine. No word directly if DexCool antifreeze is OK or not. Finding out which antifreeze has OAT inhibitors can be difficult.

However, per my conversations with the wonderful folks at Lotus, although it is amber in color, PEAK Global Lifetime antifreeze/coolant http://www.peakantifreeze.com/peak_global_lifetime.html fits the bill and is available at many locations http://www.peakantifreeze.com/storelocator.html

good luck

[jhnmdahl]

Zerex Dex-Cool, in a silver bottle, is available everywhere around here (Minnesota), since it appears to be distributed by Valvoline (which is also everywhere).

[rfelise]

I called 1-800-lube-tek today and a engineer told me that Havoline XLC is the same as Havoline DexCool.

Originally Posted by RoadDad

I have been told by Chevron (Havoline) and by Lotus that the actual Havoline XLC is not available in the US. The available version is Havoline Extended Life DexCool, which apparently is different. I have learned that any ethylene glycol antifreeze with OAT corrosion inhibitors is fine. No word directly if DexCool antifreeze is OK or not. Finding out which antifreeze has OAT inhibitors can be difficult.

However, per my conversations with the wonderful folks at Lotus, although it is amber in color, PEAK Global Lifetime antifreeze/coolant http://www.peakantifreeze.com/peak_global_lifetime.html fits the bill and is available at many locations http://www.peakantifreeze.com/storelocator.html

good luck

[RoadDad]

Originally Posted by rfelise

I called 1-800-lube-tek today and a engineer told me that Havoline XLC is the same as Havoline DexCool.

I never got an answer about Havoline DexCool from Lotus. They told me to get the PEAK Global Lifetime coolant.

I couldn't find anything about OAT corrosion inhibitors in the Havoline DexCool info, but again .

[raggedy1]

I always thought that DexCool and OAT went hand in hand. You couldn't have one without the other; that's what DexCool was all about, right?

[RoadDad]

Originally Posted by raggedy1

I always thought that DexCool and OAT went hand in hand. You couldn't have one without the other; that's what DexCool was all about, right?

You're probably right. Though, no one would commit to the DexCool being ok in the Lotus.

[TimMullen]

Originally Posted by RoadDad

I have been told by Chevron (Havoline) and by Lotus that the actual Havoline XLC is not available in the US. The available version is Havoline Extended Life DexCool, which apparently is different. I have learned that any ethylene glycol antifreeze with OAT corrosion inhibitors is fine. No word directly if DexCool antifreeze is OK or not. Finding out which antifreeze has OAT inhibitors can be difficult.

It's not really difficult to determine if an antifreeze has OAT - that pretty much defines DexCool - however...

If you look up DexCool, it is described as an OAT (Organic Acid Technology), but there are different types of OAT - DexCool and the another type. This article from a trade magizine has even more (confusing) information. Now, I'm really confused.

[necro]

Heh - I guess we are one of the few car owners who fret so much about the right kind of coolant.

[RoadDad]

Originally Posted by TimMullen

It's not really difficult to determine if an antifreeze has OAT - that pretty much defines DexCool - however...

If you look up DexCool, it is described as an OAT (Organic Acid Technology), but there are different types of OAT - DexCool and the another type. This article from a trade magizine has even more (confusing) information. Now, I'm really confused.

That's why I was trying to find out from Lotus if the DexCool was OK. I informed them that I was having trouble finding ethylene glycol antifreeze with OAT inhibitors but I had Havoline Extended Life DexCool readily available. They never told me that it was ok to use, instead they pointed me to the PEAK coolant and even found my closest NAPA retail location for me that carries it.

[rfelise]

My dealer use Zerex orange color coolanr, and DexCool was on the lable.

Originally Posted by gameson

What kind of engine coolant do you use?

Thanks

[Jean-Paul]

none of these coolants are available in my country. do you know any other brands that fulfill the lotus recomendations ?

[Monsi]

Dex cool(death cool) was originally marketed as silica(the stuff in normal coolant that protects aluminum) free it has a nasty habit of destroying engines right after their warranties expire... I got a car that had death cool in it and half of the coolant system tubing metal tubing had holes in it... I would google deathcool before ever putting a GM product in your lotus

My powertrain warranty is already void and I plan on putting an aftermarket supercharger on so I am not afraid to say it... I will NEVER put orange antifreeze in any car I ever own lotus or otherwise

[Jean-Paul]

i have found repsol here and shell but none of them are orange. can someone take a look and let me know ?

Shell Lubricants - Shell Heavy Duty Antifreeze and Coolant

Chemical Products, Lubricants, Petrol Stations... Repsol.com

[codymac]

Originally Posted by Monsi

I will NEVER put orange antifreeze in any car I ever own lotus or otherwise

Agreed! As soon as my warranty is out, I'm flushing the system and putting in something normal.

Originally Posted by Jean-Paul

i have found repsol here and shell but none of them are orange. can someone take a look and let me know ?

Unfortunately, you really can't go by color and mixing the wrong types can allegedly lead to very bad results.

You're in Greece? Might try contacting the (only) dealer in Athens:
TRIDENT CARS SA

[Jean-Paul]

Originally Posted by codymac

Agreed! As soon as my warranty is out, I'm flushing the system and putting in something normal.



Unfortunately, you really can't go by color and mixing the wrong types can allegedly lead to very bad results.

You're in Greece? Might try contacting the (only) dealer in Athens:
TRIDENT CARS SA

Was that a joke about the Greek dealer ? the guys there no sh**t,

i have emptied my entire system, radiator and engine block from the coolant, and i am looking for something new. are the above mentioned coolants any good ???