Sir Nuke

ya know ry_clark....we keep tellin people that using preimum is a waste...for MORE than one reason....guess you just proved our point. :{D glad you are a much happier camper now.

ry_clark

Thank You, Sir Nuke you are 1 of the people responsible for my

hihoslva

I had a good sense of my mileage today - figured I'd add my $.02

I filled up this morning - actually, I put in $10, but it got me to the "full" mark on the gauge without "topping-off", so the tank read full, but could've taken some more. I use 87 octane, and have about 21,000 miles on my Pro5 (automatic trans), and was carrying aprroximately 100-120 lbs of tools in the hatch.

I drove 190 miles, probably 90% highway, at an average speed of around 65+ MPH.

Net result - my gauge is now at or a hair below the halfway mark.

Rough estimates would be - 190 on half tank of gas = 380 miles on full tank (figuring if I "topped-off" and stuffed the tank, that would be the "reserve" when I was running low - so I think I used just about a real-world half tank today).

So using 14 gallons as a tank full (impossible to use all 14.6 without getting stranded, you know ) 380/14 ~ 27.1 MPG.

I don't think this is too bad considering the terrain was hilly, and I carry the extra weight. With an empty car, on fairly flat ground, with a topped-off tank, I'm sure I could pull 400 or more miles per tank easily, which would be around 28-29 MPG at least.

I will do the fill up/drive/refill/calculate method soon, just to check my numbers.

shaderman

I'm averaging 9.9L/100Km since August when I bought my P5. I would be happier with better mileage, but it seems to be pretty much on track with the 9.6L/100Km advertised.

If anyone's interested, here's a spreadsheet of my numbers.

Cheers,

Eric

DanMan

You know what, i get about 24 MPG in the city and well I'm young so I drive my car pretty hard still making sure to give her the breaks its needs to rest and recuperate, i use fuel cleaner and such, oil cleaner all that frequenlty, i get 30-37 miles on the freeway depending on wiether I crush at 70 or 75 or just try to get to my destination the fastest, I drive my car fast but when its off the road I make sure it gets the car it needs. mabey thats why i get good gas milaege when i want to.

Its all about the love!!!!

proman

Well i get on average b/w 24 and 27 mpg with mixed city and highway driving. I push my car alot so i guess that may be why it's a little on the low side.

frankd

From looking at your spreadsheet, I see you switched to a K&N air filter a few months ago. From your numbers, it seems gas mileage do not improve after that. I have thought about doing the same thing based on claims of improved airflow resulting in better milaege and power output. Does anyone have any evidence that a K&N filter in a P5 really does anything for gas mileage or power?

shaderman

As you noticed, there wasn't a noticeable change in mileage with the K&N, nor a real power increase. The car feels slightly more responsive, and the engine definitely has a better "growl". Since the K&N is a lifetime filter, it still pays for itself.

Cheers,

Eric

Don M

On our last tank, we went 360 miles and when we filled, it took exactly 12 gallons. That was 100 city miles, followed by 260 freeway miles at 75 MPH - 30 MPG exactly.

'02 base model P5, 5 speed, 87 octane gas, not using the A/C.

Don