stallionmedic
Registered User
I have a 91 f250 with a 7.3L IDI....65k original miles....runs great. In doing my homework on this truck...of course i stumbled upon cavitation articles and freaked. I checked the coolant with a hydrometer and had good freeze protection but the coolant was unlike anything ive seen before....yellowish gold in Color. There was a john deere keychain in it and i believe the previous owner may have use the cool gard john deere coolant....my question is....will the TEST STRIPS ive heard about tell me if i have the SCA protection against the cavitation issue? Or should i just flush the damn thimg and run something like fleet guard with added SCA? Forgive my inexperience....just trying to do my best to learn while protecting my new baby