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-   -   Fuel economy has diminished. (https://www.chevyhhr.net/forums/fuel-economy-hypermiling-47/fuel-economy-has-diminished-30829/)

Greybeard999 10-26-2010 03:30 PM


Originally Posted by Lucky (Post 500673)
hhr's don't have a fuel filter. the only fuel filter it uses is sock type filter on the end of the fuel pump in the tank. :thumb: The air filter is a good idea though.


Originally Posted by slow8 (Post 500799)
What? Whose idea was that?

Some "bean counter" at GM I would imagine. :roll:

843de 10-26-2010 04:04 PM

Mileage can be affected by so many variables, but I have noticed that when I switch from BP to some other brand of "rocket fuel"...I see an 8-12% decrease in mileage. I used to see this back when I lived in a Sunoco heavy area and then switched to Exxon or something else...the mileage dropped a few percent. Maybe our vehicles just like a certain brand, like us "carbon based bio-modules" preferring Miller over Bud. Umm, just a thought, probably means I think too much.

windsmith 10-26-2010 08:31 PM


Originally Posted by 843de (Post 500808)
when I switch from BP to some other brand of "rocket fuel"...I see an 8-12% decrease in mileage.

BP must be on to something.

Snoopy 10-26-2010 08:42 PM


Originally Posted by Greybeard999 (Post 500802)
Some "bean counter" at GM I would imagine. :roll:


Actually Greybeard....that change was on a employee, who was a technician, suggestion. The employee was awarded $20k for the suggestion, which was the max allowable.

The thought process, for what it is worth........

external fuel filters are no longer needed because of the design and build material of the tanks and related apparatus. It is one less part with connectors that would need to be installed (and ultimately changing). Fuels are manufactured and filtered so well at the refineries and at the tank farms that it also reduces the likelihood (the culprit here is obviously the stations.....which GM says is the responsibility of the petroleum companies to monitor).

I'm not saying I agree with it, but that's it. I knew the awardee.

sleeper 10-27-2010 01:40 AM


Originally Posted by Snoopy (Post 500847)
Actually Greybeard....that change was on a employee, who was a technician, suggestion. The employee was awarded $20k for the suggestion, which was the max allowable.

The thought process, for what it is worth........

I'm not saying I agree with it, but that's it. I knew the awardee.

Perhaps we now know the awardee also huh Snoopy ?

Snoopy 10-27-2010 01:30 PM

Nope, not me.

I did get a couple of good sized awards for other suggestions, however. For example......

Remember when the PVC line went to the air cleaner and had a little nylon mesh type filter that was attached to the air cleaner by a metal "u" shaped clip.

Well, when you purchased a new AC replacement filter, the box also contained a new spring clip. I suggested, supplying the filter without the clip since the clip doesn't wear out. That saved GM some money, I forget what the amount was, BUT.....

I received the maximum award.

sleeper 10-29-2010 12:44 AM

Snoopy-
I figured you had some great input somewhere in the mix. :twothumbs:

Yes I do remember the PCV metal "U" clip inside the air cleaner...

Good call, & Good for you $$..

Drifter. 11-06-2010 08:52 AM

Did the place where you buy gas switch to 10 or 15% ethanol? You will lose the same amount in mileage as the % of ethanol...My motorcycles, tractor and mower....hate the stuff!

gangster moblie 01-02-2011 10:13 AM

hey have you ever noticed the fuel trucks or tankers all fill up at the same fueling station or plant to deliver your fuel in a certain part of your state lol.i myself think its b s its pretty much the same stuff maybe thiers a differnce in octane but i wouldnt doubt were getting snorked on that deal to more money more money my 2 cents

Old Lar 01-02-2011 11:41 AM

Fuel filters take the crud out of the gas tank prior to getting into the injectors or carburators. I can only imagine what the sock looks like in my 87 Fiero as the tank has never been dropped. There is a fuel filter in the gas line after the tank. That filter gets change periodically.


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