Using gas quickly, poor mileage?

CASMIHOK

MEMBER
2002 TOYOTA RAV4
2.4L
4 CYL
AUTOMATIC
136,000 MILES

Hello everybody and I hope you’re doing well and thank you again in advance. I successfully replaced my valve cover gasket thanks to you guys.

This is a different problem and I’m just curious, any input would be appreciated. This is the first time I’m noticing this.

I got a full tank of gas two days ago and have only driven around 10 miles since then. I am already down to 3/4 of a tank - this is so off to me. I’ve been impressed with the MPG since I got this car last year and this has thrown me for a loop.

The gas station I got gas at is one I’ve been to a hundred times - I’m going to check the MPG with my dad’s fancy reader when I’m there next. My brother told me to check the air filter. Any advice is greatly appreciated. Thank you in advance.

Friday, May 9th, 2025 AT 11:05 AM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
51,257 POSTS

Yes, for sure check the air filter, also I would check the air pressure in the tires. Can you smell gas around the vehicle, if so, you have a leak. Also, I have seen the EVAP purge valve stick open and allow fuel to enter the engine. Here is the location of the valve, remove it and you should not be able to blow through it. If so, it is bad and needs replacement.

Please go over this guide as well:

https://www.2carpros.com/articles/how-to-get-better-fuel-economy-88251617

Check out the images (below). Please let us know what happens.

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