VERY Dissappointed with the Celica.... Options

[Badkarma]

well, i bought the celica with hopes of getting Much better gas mileage than my other car. 1999 mustang 3.8 v6 5 spd. so i filled it up last week, set the trip, and today the trip meter hit 280 miles and i was due for a fill up. well, it took 14.4 gallons. it comes out to about 19.5 miles per gallon. my mustang gets 21 average! i've gotten up to 30!. this really was quite a let down. i still love the celica but is everyone getting such horrible mpg?
maintainance is kept up. runs great. plugs, wires, filters. only thing i can think of is it needs of an alignment. what else could be the problem?

thanks, sorry for knocking the celi's.


Erich

[99CelicaGT]

+4 plugs are meant for larger displacement engines such as 3.8-4.0 v6's. It allows all the fuel in each cylinder to completely burn. This is why +2 was the most efficient plug for my 5sfe. My gas mileage improved greatly after switching from NGK to the bosch plantium +2.

Now on other hand, I used to have a Nissan Sentra 2.0 that would run the bosch +2's too hot, and they would turn white with no effort. It would only run good with Autolite plugs. Sometimes, an individual engine can be very picky about what you give it.