Bad fuel economy on a '99

[twopointfivebar]

Just curious what's people's approx average KM per tank on a 98-01 gen corolla.

I've been getting really bad fuel economy for the past year, I've racked up 206K, and get about 450KM on a 45L fill up. And this is with 1/2 highway driving, and 1/2 city driving. I dont even push it that much either.

I've already changed my spark plugs, I have yet to change the wires.
Clean air filter, regular oil changes every 4-5K, additives, whatelse is there?

[Ghost]

that is what i get too on a 2000 corolla, i don't think that it is a problem.......maybe when the weather gets warmer you'll get better fuel economy.......

[twopointfivebar]

Really? Thats odd, ... my brother's civic si gets 500KM and he still has about 1/3 of the tank left. My buddy's 2.5RS impreza gets 550-600KM on a 50L fill up. How can the corolla be so bad in gas?

[rated_w]

I avg about 610-650 km depending on my driving..

but I drive slower than my grandma

[stubborn1]

Doing some quick metric conversions (damn the imperial measuring system), I come up with about 600km on a 45L fill in my 98. I have a 5sp manual and drive about 80% on highway so I usually do pretty decent on fuel.

I had a plug wire go bad around 160k, so it probably wouldn't hurt to replace them.

[stuts]

Hey twopointfivebar sorry to hear about the bad gas mileage my suggestion is take it to a Toyota dealer get it checked out also check your tire pressure that could for sure be part of it please keep us up to date on what happened

[REN69]

JEEZZ!! what's with the tiny font!!

when I used to travel from Oshawa to Mississauga daily (150km a day, 750km a week) I would basically average about 500km a tank.. that was doing 125-140km/h constantly, I would do like maybe 10-15km in town a week, then the rest was all highway, I think my tanks are 40-45L tanks also. 4AGE though, not 1ZZFE like your car.

[stuts]

Ya sorry about that ren69 I have to say I am very surprised that the 98/01 Corolla does not get better Gas Mileage than 500 a tank I know the new Corollas get more than that what was the Canadian EPA rating for 98/01 Corollas

[twopointfivebar]

Originally Posted by stuts

Ya sorry about that ren69 I have to say I am very surprised that the 98/01 Corolla does not get better Gas Mileage than 500 a tank I know the new Corollas get more than that what was the Canadian EPA rating for 98/01 Corollas

I haven't brought it into the dealer yet, cause they charge an arm and a leg for anything.

My tires are set to 32psi at all four courners.
I did a little research regarding the EPA rating and it turns out that the mpg rating is 28 city, and 36 hwy, or 8.4L/100km city and 6.5L/100km hwy.

Just this week, I filled up 46L and travelled 455KM, and this week was mainly hwy driving. My damn Corolla is guzzling more fuel than my sister's '00 V6 Mustang.

[REN69]

Have you checked your catalytic converter or your O2 sensor? this could be a problem too.. my fuel economy improved once I put a new cat.. I think I need a new one on my 90 GTS now as my fuel economy is bad! and on premium gas too!

[rice]

i actually get better gas mileage when city driving, dunno why, probably cuz i keep it under 2,500 rpms when driving in the city, and i never hit 5th gear as much because of the mph zones, but on the highway, my rpm is at 3k at around 70-75 mph and i waste more gas that way than i do driving in the city

[stuts]

Ya so twopointfivebar I am assuming you have a 50 liter tank (or is it a 45 liter tank ) on your Corolla so I did some calculations with the information you gave me on your last post you should be getting close to 760km a tank with a 50 liter tank at least in the 700s so you definitely have a problem did you ever get that much on this Corolla in the 700s that is I hear ya with bringing it in to the dealer but some times you just have to suck it up depending on how much it bothers you of course

[rice]

^LMAO, the amount of smilies you use in your posts,,...lol,

[519]

^^gotta express your feelings somehow..

anyways my 99 gets some pretty crappy gas mileage too. I dont really have a number for you, but it sucks. But, I havent changed my air filter in the longest time. hehe and I've been rocking the same spark plugs for a longer time. I'm poor so maintenance will have to wait. plus, the family wants the car out.

[twopointfivebar]

750Km!? thats nuts! I used to get 600-650 when it was new back in the day. Maybe you guys are right, I should change the cat, ... haven't changed it since I got the car, it has 206K.

Now, if I do change the cat, what should I go with? OEM/OE replacement or those aftermarket ones that states it has high-flow and saves gas found on eBay?