I dumped in 4 gallons of Delo which, according to the container, is compatable with everything, including Detroit Spec, Navstar, etc and EC-1. I mixed it with distilled water and then started doing the research. Mistake 1, mixing with distilled water, now I am wondering about the EC-1. I don't spect that 4 gallons will hurt anything, I'll get a test strip and check.

John