Strange observation...I've been using Lucas UCL in my 4cyl 2007 Camry. At full strength dose, my mileage ALWAYS drops by 2-3 mpg's (I keep VERY good records to help eliminate other enviromental factors). I drive the same way everyday to work. At 1/2 dose, MPG is unaffected either positive or negative.
On the other hand when using it my old vehicle ('95 Merc Villager with 170K) I always got 2-3mpg better. Mileage would drop off in 2 tanks if I didn't use it. The van also idled much better with it in the tank.
Ironically, I also have had the EXACT same results using MMO with both vehicles!
Is there something going on with the Toyota 4cyl that doesn't like UCL's??
On the other hand when using it my old vehicle ('95 Merc Villager with 170K) I always got 2-3mpg better. Mileage would drop off in 2 tanks if I didn't use it. The van also idled much better with it in the tank.
Ironically, I also have had the EXACT same results using MMO with both vehicles!
Is there something going on with the Toyota 4cyl that doesn't like UCL's??
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