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Thanks the fuel consumption if off the roof getting 10.1 mph…

Customer Question
Hi, thanks the fuel...

Hi, thanks the fuel consumption if off the roof getting 10.1 mph on the trip computer

Mechanic's Assistant: Has the vehicle turned into a gas hog? And how does it start -- same as usual?

Not sure I get your question

Mechanic's Assistant: What is the model of your '10 Honda?

2008

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Had someone check it out, but he told me car seems to be running well

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Am in Nigeria, so the level of expertise is, well, low

Submitted: 6 months ago.Category: UK Car
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Answered in 6 minutes by:
12/19/2017
UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago
Jared D
Jared D, ASE Certified Technician
Category: UK Car
Satisfied Customers: 2,264
Experience: Shop Supervisor at County Fleet
Verified

Good afternoon,

Have you checked the actual fuel economy to see if it matches the trip computer? Watch how many miles you get between fill ups and see if it is actually getting 10.1 MPG. If so, then you will need to determine why it is using so much fuel. The best thing to do is use a scan tool to look at fuel trims. Do you have access to a scan tool?

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Customer reply replied 6 months ago
no I don't. I only scan when I observe any issues
Customer reply replied 6 months ago
i don't know to calculate the actual consumption but from observations over time, a full tank would normally take me about 6 days before a refill (that is on trips from home to work and back). but recently on the same distance, a full thank would barely take me 4 days. Am really spending a lot on fuel man.
UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago

Take note of the mileage that you have on the vehicle after filling the tank. Then at the next fill up see how many miles have elapsed. Then fill up the tank and divide the number of miles you drove buy the gallons it takes to fill up.

For example: if you drive 400 miles and it takes 10 gallons to fill the tank then you are getting 40 MPH 400/10=40

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UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago

If it looks like you are only getting 10 mpg then I would check to see if the brakes are stuck on or the transmission isn't shifting correctly. Does the engine seem to be working extra hard?

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Customer reply replied 6 months ago
Well, I did complain that the car is not accelerating as it should and has become noisier than it was. Don't know if this is of any help with your question
UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago

In that case the most likely cause would be a plugged catalytic converter. Do you have leaded fuel in nigeria?

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Customer reply replied 6 months ago
most likely, I just changed the catalysts (front and back) recently. Also had the top cylinder heads (front and back changed). The only things I am yet to replace are the plugs,
UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago

Spark plugs could cause poor fuel economy, but won't make noise. I would suspect plugged cats from using leaded fuel.

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UK Auto Mechanic: Jared D, ASE Certified Technician replied 6 months ago

Please let me know if you need additional info.

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