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Let me rephrase that...what techniques I use, I used correctly on the last tank...and my MPG was 16! So I'm thinking that either somebody messed with the car or my tires are low. So I went and filled the tires up to 42 PSI. Then I filled up the tank...so far she's doing better...

:confused: Hopefully it was just a bad fill before?

Could the temperature be causing the significant change?

Let me rephrase that...what techniques I use, I used correctly on the last tank...and my MPG was 16! So I'm thinking that either somebody messed with the car or my tires are low. So I went and filled the tires up to 42 PSI. Then I filled up the tank...so far she's doing better...

Did someone siphon a few gallons out perhaps?

Well temps were averaging over 100 last week...we got a temp break this week. They're in the low 90s this week.

Someone is messing with ya... Got a little brother? ;)
Isn't 16 mpg about impossible in a PT w/o a fuel leak or driving it floored?

Hi PTDixieGal

Let us help you if you will. Please give us your info such as recent tanks and techniques that you are using. You may have done this already and if you have point me in the right direction. I recently rented a PT Cruiser in California for a week and got in the 30's. Keep working at it and you will master it.

Motivational pic

http://www.cleanmpg.com/photos/data/500/Copy_of_DSC04132a.jpg

Mabye it is all the fish you have been catching and putting in the trunk? ;)

No really, recheck the math, mabye you left out a decimal or number or something.?
If you are really only getting 16 mpg, even with no hypermiling at all, there is something wrong with the car and it needs to be looked at.

Good luck
MT

You should not rely on the auto shut off valve on a gas pump.
Wayne suggests to top it off and let it burp.

I am going to do it myself since my mileage seems to be all over the place.

You should not rely on the auto shut off valve on a gas pump.
Wayne suggests to top it off and let it burp.

That might have been it too. I hear, "Top it off...don't top it off...top it off...don't top it off..." I'm not sure I topped it off. I had to use a pump I don't normally use.

FYI I already DO enter my data in the mileage logs...I just haven't had the chance to enter this tank yet.

I don't top it off (use the first click) but I also refuel at the same pump, park in the same direction and fuel at the same time of day to minimize any variability through that. But I hope it's a math issue... sometimes the easy answer is the right one.

Even a topping issue at the pump shouldn't have thrown your values that far off... could it??? :eek:

You should not rely on the auto shut off valve on a gas pump.
Wayne suggests to top it off and let it burp.

I am going to do it myself since my mileage seems to be all over the place.

As I posted a while ago in the ScanGauge section, i fill up to the top and my SG was off by only 0.4 litres out of 96 litres. Burping seems to be the clue, both for the car and my 2-month baby child ;)

Since you used a gas pump that you don't normally use it could be giving an inacurate reading by the pump. I don't know the size of your pt crusier tank but I would guess it is not real large. just being shorted a little bit could throw your mileage calculations off.

I know you can get off a couple of mpgs at the pump depending on how the pumps work, how much you try to get in, time of day, etc..., But getting 16 mpg in a PT? I dont think that is the answer. I would suggest filling up, make sure its full, drive for a 100 miles or whatever, come back to the same pump, top off and recalculate your mileage, if you get a similiar number, I bet there is something in your car needing service.

My PT has a 15 gallon tank. That's it. Plus the thing weighs 2958 pounds (yes, you read that right. Only about 200 pounds less than a Jeep Patriot). Anyway I've already filled up and this time I went back to the SAME pump I normally go to. I have driven almost 40 miles in it and the tank's still almost full.