I was told that adding transmission with the fuel is ok and help' engine preformance? True or False???

 

well a 6.0l will burn it to some extent. I have done it just to see. has no benefit but sticks badly. there are far better products out there like pm22

 

TC-w3, Power Services Gray or White(has antigell) bottle are among the top used additives.

 

Just finished going through my 2nd full tank using Opti-Lube XPD, and got my best fuel economy yet. 18.22 mpg. Thats with 20% city and 80% freeway (65mph). My previous best was 17.81 mpg, driving the same route and speed, but using 2-cycle oil & Diesel Kleen. I've made no other mods since then, and traffic wasn't any different.

 

diesel kleen here. every tank. except last tank. left the new bottle at home. and i could tell it wasnt in the tank too. love that stuff. better mpg smoother running engine and better power too.

 

Whats the pm-22