Great stuff, daler top end cleaner!

Was at the dealer getting hoses for wifes 92 4.0 (we have 2 the same) XJ(Kragens fits lousy & sucks!), and saw top end combustion chamber cleaner, got it for $6 and did mine(142K), boy what a difference! Better idle, and response, am watching mileage to hopefully see increase! I've sure learned MOST Jeep factory parts where I am(N, CA.) are either cheaper or even with Kragen, etc, and work and FIT great! Ie, I got hi perf. dist caps for $10 EACH with ROTORS???? no brainer! I love these vehicles! Heinz