Bad fuel economy on a '99

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?

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.......

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?

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

but I drive slower than my grandma

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.

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

JEEZZ!! what's with the tiny font!! :eek: :wowza:

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.

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

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

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.

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! :wowza:

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

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

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

^^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.

750Km!? thats nuts! :lol: 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?

So you never did get 700 eh twopointfivebar :thumbdown hhhhhhmmmmmmm I know that is the same calculation I did with my 07 Yaris :naughty: and I am starting to get closer to that 700 mark :clap: in the Yaris forum a guy has got 773km on a tank and it was a automatic so ya I am pritty sure my calculations are right anyways hope your gas mileage improves :thumbup:

So you never did get 700 eh twopointfivebar :thumbdown hhhhhhmmmmmmm I know that is the same calculation I did with my 07 Yaris :naughty: and I am starting to get closer to that 700 mark :clap: in the Yaris forum a guy has got 773km on a tank and it was a automatic so ya I am pritty sure my calculations are right anyways hope your gas mileage improves :thumbup:


Well, maybe my car always had an issue with gas milage since the begining but I just never calculated it out or really noticed it until recently. I bought it at 26K and it was a previous rental. For sure it was probably driven the crap out of it.

I cleaned my MAF sensor last week, good news, today i got 559km out of a fuel tank in both city/hwy driving..........Funny how even the small things make the biggest difference!

I cleaned my MAF sensor last week, good news, today i got 559km out of a fuel tank in both city/hwy driving..........Funny how even the small things make the biggest difference!

Too bad the 99 doesn't have a MAF sensor to clean. :headbang: I get 9-10L/100km almost always. I am expecting 8.