Something interesting

[hummerbk]

I've owned my TJ for two years and have always kept track of milage. I have a Fairly similar routine. It has varied between 15.1 and 15.8mpg.
I replaced the spark plugs with Champion Platinum's when I bought it.
I read here that the best plug is a double Iridium plug so I put some in last month.
My first two fill-ups averaged 16.8 and 16.4mpg.
That's just too much to call it chance!

 

[hummerbk]

Well...I thought it was interesting.

 

[lBasket]

Well...I thought it was interesting.

Even 15.1 would be a dream for me

 

[macleanflood]

Fram oil filter by chance?

-Mac

 

[hear]

Fram oil filter by chance?

-Mac

Beat me to it.

 

[DuckNut]

I stopped caring about mileage a long time ago. It's just about the least expensive aspect of ownership.

 

[hummerbk]

Fram oil filter by chance?

-Mac

Not Fram. It's a black filter NAPA sold me when I asked for a Wix?
The actual MPG doesn't really matter but a change could indicate a potential problem so I always check when filling up.
This time I was pleasantly surprised.

I've got a couple more days before the next fill up. I'll post the results either way.

 

[hear]

Not Fram. It's a black filter NAPA sold me when I asked for a Wix?
The actual MPG doesn't really matter but a change could indicate a potential problem so I always check when filling up.
This time I was pleasantly surprised.

I've got a couple more days before the next fill up. I'll post the results either way.

WOOSH


Mac is referencing a now legendary thread where somebody claimed massive mileage or HP gains after switching to a fram oil filter. I haven't collected enough data to neither confirm nor deny their claim. ;P

 

[hummerbk]

WOOSH


Mac is referencing a now legendary thread where somebody claimed massive mileage or HP gains after switching to a fram oil filter. I haven't collected enough data to neither confirm nor deny their claim. ;P

I thought it was an inside joke but that I would give them the benefit of the doubt anyway.
Thanks

 

[OldBuzzard]

Let us know if it stays consistently higher.

 

[hummerbk]

I really had high hopes the third fill up would be in the 16s.

Nope! Back to my usual 15.5 mpg.

 

[Sea Cot]

engine, trans, tire dia, gear ratio?

 

[JessicaJeeper08]

How does one determine their MPG? I guess it’s something I’ve never thought about as I know in a Jeep it sucks lol but now I’m curious.

 

[lBasket]

How does one determine their MPG? I guess it’s something I’ve never thought about as I know in a Jeep it sucks lol but now I’m curious.

Fill tank to full
Reset trip odometer
Drive
Fill tank back up
Divide trip odometer by gas pumped

 

[Rickyd]

Fill tank to full
Reset trip odometer
Drive
Fill tank back up
Divide trip odometer by gas pumped

So long as the speedo is accurate. If not you need to apply a correction factor

 

[hummerbk]

engine, trans, tire dia, gear ratio?

4.0 engine 4.11gears tires 33x12.5x 15 auto trans.
I generally don't drive over 75 but try to keep it at 70mph and any rise in the road I take it out of overdrive.

 

[lBasket]

So long as the speedo is accurate. If not you need to apply a correction factor

Too much work, I just complain about bad MPGs knowing my speedo is really off (low)

 

[KennethS]

I just keep track of how many miles to empty, then head for the gas station before I reach that number.

 

[hummerbk]

I just say hey Siri, 202 divided by 13 and get 15.5 mpg.

 

[B1Toad]

My MPG is usually bad but sometimes it worse.