Fuel Consumption Drop - Acura Forum

cb1 · 06-11-08, 12:32 AM

I have a 2000 tl, 81,000 km.and I check my mileage on a regular basis. Shortly after change to new tires (same make and model as on the vehicle) and put in a K&N filter, my mileage has gone down some 20%. Car runs well, smooth idle, everything fine. Went back to original filter, no difference.

Any suggestions as to what might have happened (perhaps precipitated by the use of the K&N filter with increased air flow) or what I should check next.

My dealer had really no suggestion other than I might try changing the plugs.... there has been a few articles about increased air flow making some sensors not operate correctly ...is there any validity to this?

Any help appreciated.

Colin

hondacuraworld · 06-11-08, 10:34 AM

Anything like that would have tripped a check engine light. Could be the brand of fuel, or maybe your service station is short-tanking you? Hard to say here....

cb1 · 06-13-08, 03:00 PM

Tried different brands of fuel (all premium, no ethanol content). Measurement by actual liters filled and distance traveled, keep fairly accurate records. Any other tips or suggestions appreciated.

06-11-08, 12:32 AM	#1 (permalink)
cb1 Registered User Join Date: Jul 2006 Posts: 25 Car 1: 2000 tl	Fuel Consumption Drop I have a 2000 tl, 81,000 km.and I check my mileage on a regular basis. Shortly after change to new tires (same make and model as on the vehicle) and put in a K&N filter, my mileage has gone down some 20%. Car runs well, smooth idle, everything fine. Went back to original filter, no difference. Any suggestions as to what might have happened (perhaps precipitated by the use of the K&N filter with increased air flow) or what I should check next. My dealer had really no suggestion other than I might try changing the plugs.... there has been a few articles about increased air flow making some sensors not operate correctly ...is there any validity to this? Any help appreciated. Colin

06-11-08, 10:34 AM	#2 (permalink)
hondacuraworld Acuraworld Preferred Vendor Join Date: Jul 2002 Location: Buffalo, NY USA Age: 36 Posts: 2,634 Your Mood: Car 1: 2004 Ford Mustang	Anything like that would have tripped a check engine light. Could be the brand of fuel, or maybe your service station is short-tanking you? Hard to say here.... __________________ Tim Poliniak \| Internet Parts Manager Ray Laks Honda/Acura \| www.hondacuraworld.com \| Toll-Free 1-888-RAY-LAKS

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06-13-08, 03:00 PM	#3 (permalink)
cb1 Registered User Join Date: Jul 2006 Posts: 25 Car 1: 2000 tl	Tried different brands of fuel (all premium, no ethanol content). Measurement by actual liters filled and distance traveled, keep fairly accurate records. Any other tips or suggestions appreciated.

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