Mileage drop from mid 17's to mid 15's

[Atlanta_man]

My usual commuter driving...still starts and runs good and plenty of power.

It's been this way for a couple months now.

Correlates closely with the 'throttle body and injector clean that the dealer talked me into.

Winter gasoline is going into the pipelines soon so maybe that will help.

 

[AE1M]

My usual commuter driving...still starts and runs good and plenty of power.

It's been this way for a couple months now.

Correlates closely with the 'throttle body and injector clean that the dealer talked me into.

Winter gasoline is going into the pipelines soon so maybe that will help.

Did you remember to unload the 500lbs of landscaping rocks in the back?

 

[GMZ]

My usual commuter driving...still starts and runs good and plenty of power.

It's been this way for a couple months now.

Correlates closely with the 'throttle body and injector clean that the dealer talked me into.

Winter gasoline is going into the pipelines soon so maybe that will help.

Air filter dirty? Intake tract blockage? Bad gas? Driving style?

 

[jstutz101]

How many miles to do you have? For what its worth I changed my spark plugs (@ 90,000 miles) in my v6 and acutally noticed a increase in mileage.

 

[GMZ]

How many miles to do you have? For what its worth I changed my spark plugs (@ 90,000 miles) in my v6 and acutally noticed a increase in mileage.

Yowzaz thats a 30K maint item

 

[03_4x4Runner]

My power and mileage improved when I cleaned the mass air sensor. There was a write up on this a while back. Very easy and cheap to do.

 

[Atlanta_man]

air filter looks good, but about due for a change, I'll do that tomorrow

78K miles almost (truck, not the filter!)

 

[ABooker]

Disconnect the battery for about 5 mins and let it reset the computer.
Then drive your normal route a few times and let the computer relearn the best optimization. Your mileage might get better. Mine did.