TOP POST

Are the tires the same size as the previous ones? Perhaps the O2 sensor
could need replacing.
I don't know if the tension on the new belts would make a difference.



DelCRVOwner wrote:
> I am the original owner of a 99 CRV, 2 wheel drive. I have always
> monitored the gas mileage closely - I mentally calculate it just about
> every time I fill the tank - and it's always averaged about 25 mpg.
> The mileage is about 112,000
>
> About 6 weeks ago, I had the timing belt, water pump, and drive belts
> replaced by a Honda dealership. They also changed the oil, replaced
> the spark plugs, and the left engine mount, which they found was broken
>
> when doing the timing belt work. Within the same week, I replaced the
> tires (Costco, Michelin X Radial DTs) and had the front end aligned by
> the dealership. I replaced the air cleaner myself.
>
>
> Ever since this work was done I'm averaging 22 mpg. Nothing has
> changed about my driving patterns, or where I get gasoline. I've
> contacted the dealership and
> they've told me that it is not possible that the work they did caused
> the gas mileage reduction. (I consider this to be a reputable shop,
> I've had work done there several times over many years) The advisor
> also implied that this really wasn't anything to be concerned about,
> and there isn't anything that they can "check" to find the
> cause. As I told him, I disagree, this is >10% reduction in gas
> mileage which is going to cost me about $250 / year.
>
>
> So I'm hoping an expert can advise, is it really just a coincidence
> that my gas mileage dropped after this work?