Using 50/50 Coolant
Posting Guru
Joined: Nov 2001
Posts: 1,743
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From: Ft Scott
The Fleetguard test strips are made by Cummins, If you've got a Cummins dealer in the area that would be the place to get them.
Posting Guru
Joined: Nov 2001
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From: Ft Scott
Either that or they weren't for the coolant you're using. They're for the green/blue coolant with DCA4 additives and are not for the red - orange - yellow or purple stuff.
Senior User
Joined: Sep 2007
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From: Southern WV
I thought that the extended life coolant was a no no for our trucks? I was looking at the coolants in Autozone and they were all ELC except one. It said it was the original formula, but it has silicate in it. The Prestone ELC coolant I bought says it is silicat/phosphate free, ethylene glycol. Isn't that exactly what is recomended?
Cargo Master
Joined: Nov 2010
Posts: 3,244
Likes: 40
The CAT ELC is what we are referencing. The issue that comes up to that the coolant is HOAT and the 94-97 psd's do now have the upgraded seals like the 99's that are capable of running this. Despite that, they run just fine on Cat coolant and I've talked to many guys that have run the coolant for 10+ years and tens, or hundreds of thousands of miles.
Fleet Owner
Joined: Aug 2004
Posts: 20,421
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From: AZ
The CAT ELC is what we are referencing. The issue that comes up to that the coolant is HOAT and the 94-97 psd's do now have the upgraded seals like the 99's that are capable of running this. Despite that, they run just fine on Cat coolant and I've talked to many guys that have run the coolant for 10+ years and tens, or hundreds of thousands of miles.
Senior User
Joined: Sep 2007
Posts: 332
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From: Southern WV
So the Cat brand of ELC is ok to use, what about the coolant I am refering to? Preston ELC, silicate and phosphate free, ethlyne glycol????
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