Fuel mileage is definitely comparable, as long as you keep the 3sfe tuned up properly. Drive like a normal human (as opposed to the monstrous lead foot I get on sunny days in my V6) and you should be between 25 and 30mpg. Unless you're in Toronto or LA, where traffic will cause that to plummet to 10mpg
Considering the abuse both my 2vzfe and 3sfe Camrys have taken (392,000km and 235,000km respectively), and considering the laughably low maintenance requirements, you'd be crazy to pass up an 89LE if the price is right. C'mon, you know you wanna!
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1990 5spd V6 Camry (Still kicking at 393,000km) 1991 Celica GTS -- Pappa needs a 3SGTE...and AWD for all this friggin' snow
Honda my A$$, you just can't kill a Yota...