Bad MPG

DARKXFIRE

MEMBER
2013 KIA RIO
1.6L
4 CYL
2WD
AUTOMATIC
60,000 MILES

I cleaned the throttle plate, checked air filter, got the OEM NGK laser iridium plugs, and I still get poor mpg.

I checked the gap on the spark plugs many times with my round spark plug gap tool. Would this wear out the tip? Also, is it better to use a different brand plug or iridium ix instead?

Thank you

2 Replies

BMDOUBLE

MECHANIC
1,139 POSTS

There are several factors that affect mpg averages. I would start by having the vehicle scanned for any trouble codes and see what the fuel trims look like. Also, make sure it is going into closed loop operation and making sure the coolant temperature is correct and that the thermostat is not stuck open. Other things like tire pressure and excess weight in trunk, terrain I.E. Hills, stop and go, driving habits, but it sounds like you are aware of those things. Hope this helps

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Friday, August 31st, 2018 AT 9:30 AM

RENEE L

ADMIN
1,257 POSTS

Hello DARKXFIRE,

I am sending you a link that if you decide to conduct the scan yourself will be a great help to you. The link features an article with written step by step instructions and pictures explaining how to do the scan yourself. Also, I have included a link to our YouTube channel with a how to video on code scanning.

This is applicable even if your check engine light is not on.

Most scanners are inexpensive to purchase, you can purchase one online from sites like Amazon.com

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

https://youtu.be/YV3TRZwer8k

Once you have the code number(s) please get back to us so that we can further assist you. We are always happy to help.

Thank you for visiting 2CarPros.com.

Kindest regards,

Renee
Admin

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Friday, August 31st, 2018 AT 11:00 AM