Originally Posted By: lawman1909
Police cars (mainly Ford) spec 5w20 for all season. So, a vehicle that is very often doing redline runs, idles excessively, and seems to be stomped on numerous times per shift, is able to reach 150,000 miles and then be passed on to taxis to be beaten up another 200k + miles and still running strong, I'd say 5w20 is fine..
Cat15 is expected to run 400k before in-frame and 1 million before out-of-frame. In my state, police cars are written off at 80-115k miles. They run on 2k miles OCi, as far as I remember. Taxis are all hybrids now. Most of the Police junk is shipped to middle-east noways. Again, not sure what the guy is looking for as far as protection. Like I said, for most users, it is OK. if in extreme heat and so forth, may need other sensitivities. "Smart" car manufacturers would give temp-viscosity guide.