Fuel Economy...WTF?

spearfish25 · 07-03-2009, 09:57 AM

Hmm, all good points. I'm going to top off the tank today and do the math. Will also fill up at a nearby BP instead of the usual Shell.

Nikon FM · 07-03-2009, 10:02 AM

Just after filling up go for a long highway drive somewhere and then compare. I bet the mpg will be significantly better.

dad · 07-03-2009, 12:02 PM

Quote:

Originally Posted by spearfish25

Hmm, all good points. I'm going to top off the tank today and do the math. Will also fill up at a nearby BP instead of the usual Shell.

No, don't mix the gasolines, go to a different Shell station.

spearfish25 · 07-03-2009, 12:04 PM

Quote:

Originally Posted by dad

No, don't mix the gasolines, go to a different Shell station.

I have two shell stations within two blocks of each other. I gave up on one because it was disgusting and the pumps were always out of order. The other seems to be better run and is where I've been filling up. My guess is it's not the gas...or both stations get replenished by the same trucks.

jpit · 07-03-2009, 12:08 PM

The computer on the 370Z for gas mileage is by far the best I have had in a car. It has been accurate to within .1 of a mile for each fill-up I have calculated.

dad · 07-03-2009, 12:10 PM

Quote:

Originally Posted by spearfish25

I have two shell stations within two blocks of each other. I gave up on one because it was disgusting and the pumps were always out of order. The other seems to be better run and is where I've been filling up. My guess is it's not the gas...or both stations get replenished by the same trucks.

Try to fill up with Shell, different brands of gasolines could have different volitile levels. It's not bad to mix them, but your engine may run a little different.

OnCallZ · 07-03-2009, 01:10 PM

Had same problem as you, my commute to work is ~9 miles, half city half highway - my mpg is ~16. I have been trying different brands and I get the best mileage on chevron/shell, worst on 7/11 gas.

07-03-2009, 10:02 AM	#2 (permalink)
Nikon FM Track Member Join Date: Jan 2009 Location: Snoqualmie WA Posts: 973 Drives: 03 996TT Porsche Rep Power: 607	Just after filling up go for a long highway drive somewhere and then compare. I bet the mpg will be significantly better. __________________ Buddy Revell: "One man's sooner is another man's later"

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Fuel question	MYZ	Engine & Drivetrain	7	04-04-2020 03:22 PM
Question about air/fuel	zZSportZz	Nissan 370Z General Discussions	9	06-15-2009 04:59 PM
370Z fuel economy	bossman	Nissan 370Z General Discussions	35	02-19-2009 10:46 AM
Fuel Release	FERRARI	Nissan 370Z General Discussions	3	02-13-2009 11:36 AM

07-03-2009, 09:57 AM	#1 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	Hmm, all good points. I'm going to top off the tank today and do the math. Will also fill up at a nearby BP instead of the usual Shell.

07-03-2009, 12:08 PM	#5 (permalink)
jpit Enthusiast Member Join Date: Feb 2009 Location: Washington State Posts: 440 Drives: 370Z Tour MT w/Spt Rep Power: 17	The computer on the 370Z for gas mileage is by far the best I have had in a car. It has been accurate to within .1 of a mile for each fill-up I have calculated.

07-03-2009, 01:10 PM	#7 (permalink)
OnCallZ Base Member Join Date: Jan 2009 Location: Florida Posts: 108 Drives: g37 Rep Power: 17	Had same problem as you, my commute to work is ~9 miles, half city half highway - my mpg is ~16. I have been trying different brands and I get the best mileage on chevron/shell, worst on 7/11 gas.