I've been running half a pint (225 ml) of MMO at every fill up for the past 6,670 km (4,169 miles) in my Grand Marquis with 91 RON/87 AKI gasoline. I think I've gone though something like three and a half quart bottles of MMO already.
Last week I ran out of MMO and because I run TC-W3 in my Montero, I decided I would use that this time. So I measured exactly 113 ml (3.8 oz) of Pennzoil Synthetic Blend TC-W3 (500:1 ratio) and refuelled with 91 RON/87 AKI.
Roughly 125 km (78 miles) into the tank, I started hearing rattling sounds from the engine under light throttle (detonation). I had to depress the accelerator enough to force a downshift before the detonation would stop. This kept on going for the rest of the tank, and I decided I would switch back to MMO at my next fill up. My fuel economy also went down from an average of 12.5 L/100km (19 MPG) to 14.1 L/100km (16.7 MPG). I also noticed some oily residue left on my exhaust tips.
The detonation continued with the MMO until I was about 300 km (188 miles) into the tank, and then it completely disappeared. I managed to get 13 L/100km (18.1 MPG) out of the first tank of MMO mixed in, and on my second run it went back to the regular 12.5 L/100km (19 MPG). So basically I will continue to run MMO in my Grand Marquis.
That said, if I do decided to run TC-W3 again at some point, does this mean I should run a lesser dose?
Thanks!
Last week I ran out of MMO and because I run TC-W3 in my Montero, I decided I would use that this time. So I measured exactly 113 ml (3.8 oz) of Pennzoil Synthetic Blend TC-W3 (500:1 ratio) and refuelled with 91 RON/87 AKI.
Roughly 125 km (78 miles) into the tank, I started hearing rattling sounds from the engine under light throttle (detonation). I had to depress the accelerator enough to force a downshift before the detonation would stop. This kept on going for the rest of the tank, and I decided I would switch back to MMO at my next fill up. My fuel economy also went down from an average of 12.5 L/100km (19 MPG) to 14.1 L/100km (16.7 MPG). I also noticed some oily residue left on my exhaust tips.
The detonation continued with the MMO until I was about 300 km (188 miles) into the tank, and then it completely disappeared. I managed to get 13 L/100km (18.1 MPG) out of the first tank of MMO mixed in, and on my second run it went back to the regular 12.5 L/100km (19 MPG). So basically I will continue to run MMO in my Grand Marquis.
That said, if I do decided to run TC-W3 again at some point, does this mean I should run a lesser dose?