Auto RX

[PW01]

After much reading at Bobistheoilguy, I decided to give Auto RX a try. My truck has a little over 76,000 miles on it, and has been meticulously maintained. I felt like the engine internals should be fairly clean because I always changed the Castrol GTX at 3,000 miles, and after switching to Mobil 1 never missed the 5,000 mile mark. The main reason I wanted to try the Auto RX was fuel economy, I'm spending more on gas than my truck payment! I'm about 400 miles into the "cleaning phase" (using Castrol GTX and a Super Tech filter), and noticed something unexpected - my timing chain rattle is almost nonexistent! The motor has never been this quiet, even after the dealership pulled the motor and replaced both timing assemblies. I don't know if its just the added volume (5 qts oil and 10 ozs Auto RX) in the motor, or if the product is cleaning the oil passages and allowing the oil to reach the timing chain tensioners faster. Probably too soon to tell, but I can't wait to see what happens when the application is over and I switch back to Mobil 1.

 

[Frank]

Auto-Rx uses oil as a carrier.
Oil can't lubricate through dirt,contaminants,

Auto-Rx is letting oil get to previous non lubricated areas.

 

[Tempest]

I'm very happy with the results on my 4.0 OHV Ranger. I couldn't believe the amount of junk that came out of the oil on the first clean and rinse. Conventional oil had always been changed at
ARX's main component is a metal cutting grade ester, so it actually aids in protecting the metal.

 

[PW01]

750 miles into the cleaning phase I filled up and calculated the fuel economy. 18.5 mpg with no change in fuel brand or driving habits/route! My average mileage is around 16 mpg. Just for kicks, I bled out a quart of oil for inspection and its coal black. I can't wait to see what it looks like after the second half of the cleaning phase is over!