What are you guys running in say a 1983 Jeep CJ7? Running the 4.2 I-6 engine. Has aluminum rad, copper brass heater core and cast iron block. So basically most all metals here.
I've ran Dex-Cool for 4 years, zero issues. Then ran some Peak Global for 4 years. Again no issues. Ran some Prestone AMAM for a couple. Again nothing to report about. Block and rad is still clean as can be. Now running the original green again. Thought I would put back what came in it.
From what I've read, you get instant protection from the original green formula. Lasts roughly two years. Have to change it more often.
The 5 year/150,000 mile stuff offers "gradual" protection, over an extended period of time. Lacks total initial protection like original green does.
So for old cars, you guys use??
I've ran Dex-Cool for 4 years, zero issues. Then ran some Peak Global for 4 years. Again no issues. Ran some Prestone AMAM for a couple. Again nothing to report about. Block and rad is still clean as can be. Now running the original green again. Thought I would put back what came in it.
From what I've read, you get instant protection from the original green formula. Lasts roughly two years. Have to change it more often.
The 5 year/150,000 mile stuff offers "gradual" protection, over an extended period of time. Lacks total initial protection like original green does.
So for old cars, you guys use??