Shell Gas and Your Z

Sh0velMan · 03-17-2012, 06:53 PM

Fwiw... We only use shell. On our second trip to the Dyno we filled up at QT and lost over 20hp. The logs showed the ECU pulling timing liberally...

Ran that tank out, filled up with Shell again, gave it 3-4 drive cycles to get fuel trim adjusted then re-dynoed... Power is back.

My anecdotal example is just that, but I won't be straying from Shell (or Kroger since it is the same stuff and has been confirmed on the Dyno).

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Omikron · 03-19-2012, 06:51 AM

Quote:

Originally Posted by Sh0velMan

Fwiw... We only use shell. On our second trip to the Dyno we filled up at QT and lost over 20hp. The logs showed the ECU pulling timing liberally...

Ran that tank out, filled up with Shell again, gave it 3-4 drive cycles to get fuel trim adjusted then re-dynoed... Power is back.

My anecdotal example is just that, but I won't be straying from Shell (or Kroger since it is the same stuff and has been confirmed on the Dyno).

Sent from my iPad using Tapatalk HD

Do you have a yellow 370 by chance?

Compdoc777 · 03-19-2012, 07:55 AM

I was going to say Kroger uses Shell gas. Now what may be happening is they are selling you gas that is 87 octane on the 93 pump. There are always business people trying to rip one off at the pump.

I notice the places here as well. I have a chevron every time I fill up there my car stars knocking and they are charging over $4 a month ago for a gallon. They are ripping people off.

My kroger has been the best cheapest gas and true 93. They even sell E85, cool station!

03-17-2012, 06:53 PM	#1 (permalink)
Sh0velMan A True Z Fanatic Join Date: Jan 2012 Location: Dallas/Ft.Worth Posts: 3,349 Drives: Noisily. Rep Power: 21	Fwiw... We only use shell. On our second trip to the Dyno we filled up at QT and lost over 20hp. The logs showed the ECU pulling timing liberally... Ran that tank out, filled up with Shell again, gave it 3-4 drive cycles to get fuel trim adjusted then re-dynoed... Power is back. My anecdotal example is just that, but I won't be straying from Shell (or Kroger since it is the same stuff and has been confirmed on the Dyno). Sent from my iPad using Tapatalk HD __________________ Buy My Car! \| Build Thread

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03-19-2012, 07:55 AM	#3 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 14	I was going to say Kroger uses Shell gas. Now what may be happening is they are selling you gas that is 87 octane on the 93 pump. There are always business people trying to rip one off at the pump. I notice the places here as well. I have a chevron every time I fill up there my car stars knocking and they are charging over $4 a month ago for a gallon. They are ripping people off. My kroger has been the best cheapest gas and true 93. They even sell E85, cool station!