Shell V-Power vs Chevron

flashburn · 02-20-2012, 08:40 AM

Never noticed a difference with different gas around here, all 93. Regardless, I always just get gas from Hess, since its the easiest one for me, and always the cheapest. Oh, and I just found out that by buying Hess I am apparently not funding terrorism, so that's going to be my new reason I give people.

Spikuh · 02-20-2012, 08:51 AM

Quote:

Originally Posted by Mecinoid

I use 91 octane Shell, Chevron, Costco (supposed to be top tier) gas. Never noticed any difference.

I'm getting right at 25mpg. a couple of tanks at 27.5mpg. I take it easy a lot in the Z but, I do let her hang out on the mountain roads around here for a few minutes every tank. Can't help myself. So, I'd like to take a nice long trip down Hwy 5 to LA..... I bet keeping it at 70mph I could break 30mpg. I should try that soon.

I'm liking Costco gas a lot lately. It generally .25 less per gallon. It went back up today to $3.85 ouch.... It was at $3.59 last week. Oh well ...

Quote:

Originally Posted by AhadV

I'm in Dallas and there's 91 octane gas everywhere. Not shell but Exxon has it and so does 7 11 gas. Like I said, I stick to v power. And 27.5 is ridiculous... I got 19 my first tank

Driving regularly (i.e. maintaining a given speed) the best I can get is around 28 mpg at 70 mph. Could probably eek out a bit more in colder weather, but I think 28 mpg is probably very close to the upper bound for traveling 70 without using some sort of special driving method. I have noticed that going 55 mpg, I can get anywhere between 31 and 33 mpg depending on the terrain. If you do manage to break the 30 mpg mark though, do let us know.

And that is pretty cool about the pulse/coast driving method. I have never heard of that one, but will have to try it out for a couple hours when I head back towards Houston this Wednesday and see what I can get. Hopefully I won't be pulled over for erratic driving.

Speedy · 02-20-2012, 10:26 AM

I just posted this in another thread.

The biggest thing to getting decent mileage is smooth driving. Try to predict traffic patterns that will allow you to avoid the brakes as much as possible. Doing so also keeps you more focused on other folks driving helping to avoid mishaps.

I didn't get the Z to be a gas mileage winner, but I do want it to be reasonable to drive to work. I'm happy with 23. If you're getting 27 that's fantastic as my old Accord 4 banger got about that.

Now one thing that blows my mind. I can drive my 600RWHP Challenger to the drag strip, race all day running in the 11s, and drive it back home and average nearly 24MPH in it. Eat your heart out EPA.

vividracing · 02-20-2012, 10:56 AM

Quote:

Originally Posted by Ridgerunner

Shell V power is 93 octane

Quote:

Originally Posted by Apoc370z

oh is it? that explains EVERYTHING

Not in California. You might be able to get 93 V Power in Arkansas, but in CA it's only 91.

AhadV · 02-20-2012, 01:55 PM

CA has 76 gas which is rated higher than v power ... even nascar says so haha

Dwight Frye · 02-20-2012, 04:55 PM

I paid $4.199 for 91 octane at the local Arco station here in CA this weekend. Gas is so freakin' expensive here that I shop for price although I stay away from places that look sketchy. Since Arco probably doesn't have the same additives as Shell or Chevron I run a bottle of Techron through it before every oil change and add a bottle of Lucas UCL every 5k miles and also add a dose of MMO to the fuel every 2-3K miles. I have been doing this for years with several vehicles, have never paid for a dealer FI cleaning and never experienced problems with a fuel pump or injectors, which supposedly are adversely affected with cheap gas and the presence of ethanol.

VCuomo · 02-20-2012, 08:07 PM

Quote:

Originally Posted by Ridgerunner

Shell V power is 93 octane

I bet it's not in Kalifornia...

stratburst · 02-20-2012, 08:09 PM

I'm averaging 22 but I definitely didn't buy a Z save a few bucks at the pump. This engine doesn't like to go slow. It begs to be pushed.

physics · 09-06-2019, 10:04 AM

Quote:

Originally Posted by Vince

My understanding is that unless your engine is experiencing detonation or knocking, there is no reason to purchase a higher octane fuel. It does not improve performance. The only thing I could think of is if the knock sensor is detecting detonation and retarding timing even with a 91 octane fuel? Does the Z actually benefit from a higher octane than recommended in the owners manual?

Is there a difference in the oxygenation of Chevron vs V-Power? I could definitely see that affecting performance. Maybe V-Power doesn't contain ethanol?

The 91 octane that Nissan recommends in the manual is a minimum octane that your engine can run without damage, not an optimal octane. In my experience, blending enough Sunoco SS100 race gas with the 91 octane pump gas to get a blended average of 93 - 94 octane works very well in my Z. It idles a little smoother and more quietly and pulls a little stronger from a stop. My gas milegae average goes up by a couple of mpg with the higher octane blend. I think the ECU in our cars pulls timing and richens the fuel mixture when it senses the beginning of engine knock from the use of fuel lower than 93 octane.

UNKNOWN_370 · 09-06-2019, 10:06 AM

Both are great to me...
Chevron seems to have less gas mileage.

JARblue · 09-06-2019, 01:41 PM

Way to bump a 7 year old dead thread answering the OP

I use Shell and avoid Chevron

I saw some research years ago about the various additive blends used by the various gas companies per region. Tried finding it just now with no luck. The data showed the additive package in Shell V-Power was clearly superior to others. Chevron's additives are good for longevity and not much else. Or course that was probably 5+ years ago. Who knows what has changed in that time.

cv129 · 09-06-2019, 04:09 PM

When I use Shell, I would take built Mustangs and Camaros to gaplebees....

Oh I thought this is the Facebook group, sorry.

cooltoy · 09-06-2019, 05:02 PM

Shell all the way.

Does Chevron have ethanol?

Magic Bus · 09-06-2019, 06:03 PM

No Chevron in Hawaii for the last 3 years. They sold all their assets here and stations all got rebranded to Texaco.

Ventruck · 09-06-2019, 08:40 PM

maybe it's a mix of tune, shorter final and minimal highway, but I'm barely getting 13mpg

02-20-2012, 08:40 AM	#31 (permalink)
flashburn A True Z Fanatic Join Date: May 2009 Location: Central Florida Posts: 1,884 Drives: '12 Corvette GS 6M Rep Power: 18	Never noticed a difference with different gas around here, all 93. Regardless, I always just get gas from Hess, since its the easiest one for me, and always the cheapest. Oh, and I just found out that by buying Hess I am apparently not funding terrorism, so that's going to be my new reason I give people. __________________ Current Ride: 2012 Chevrolet Corvette Grand Sport Centennial Edition Carbon Flash 6M Previous Ride: 2009 Nissan 370Z Sport Platinum Graphite 7AT

09-06-2019, 10:06 AM	#40 (permalink)
UNKNOWN_370 A True Z Fanatic Join Date: Jul 2009 Location: ny'r livn in tx Posts: 8,687 Drives: well over 130m.p.h. Rep Power: 14857	Both are great to me... Chevron seems to have less gas mileage. __________________ Favorite Quote. "I'm not gonna kill you... I'm just gonna Bash Your Face In" Jack Nicholson-"The Shining". 1980

09-06-2019, 01:41 PM	#41 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Way to bump a 7 year old dead thread answering the OP I use Shell and avoid Chevron I saw some research years ago about the various additive blends used by the various gas companies per region. Tried finding it just now with no luck. The data showed the additive package in Shell V-Power was clearly superior to others. Chevron's additives are good for longevity and not much else. Or course that was probably 5+ years ago. Who knows what has changed in that time. Hotrodz likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-06-2019, 04:09 PM	#42 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,192 Drives: 09 Nismo, 16 Nismo Rep Power: 159827	When I use Shell, I would take built Mustangs and Camaros to gaplebees.... Oh I thought this is the Facebook group, sorry. JARblue and redondoaveb like this. __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

09-06-2019, 05:02 PM	#43 (permalink)
cooltoy Elite Member Join Date: Jun 2012 Location: Calgary Posts: 13,938 Drives: 14 PW 370Z S/T MT Rep Power: 240204	Shell all the way. Does Chevron have ethanol? __________________ Member of kenchan's "photoshopped mods" and "proper offsets" gang.

02-20-2012, 10:26 AM	#33 (permalink)
Speedy Enthusiast Member Join Date: Jan 2012 Location: TN Posts: 390 Drives: check my signature Rep Power: 13	I just posted this in another thread. The biggest thing to getting decent mileage is smooth driving. Try to predict traffic patterns that will allow you to avoid the brakes as much as possible. Doing so also keeps you more focused on other folks driving helping to avoid mishaps. I didn't get the Z to be a gas mileage winner, but I do want it to be reasonable to drive to work. I'm happy with 23. If you're getting 27 that's fantastic as my old Accord 4 banger got about that. Now one thing that blows my mind. I can drive my 600RWHP Challenger to the drag strip, race all day running in the 11s, and drive it back home and average nearly 24MPH in it. Eat your heart out EPA.

02-20-2012, 01:55 PM	#35 (permalink)
AhadV Base Member Join Date: Feb 2012 Location: DFW TX Posts: 75 Drives: 370Z Red Manual Rep Power: 13	CA has 76 gas which is rated higher than v power ... even nascar says so haha

02-20-2012, 04:55 PM	#36 (permalink)
Dwight Frye Enthusiast Member Join Date: Jul 2009 Location: Occupied California Posts: 423 Drives: '09 Tour/Sport/6MT Rep Power: 15	I paid $4.199 for 91 octane at the local Arco station here in CA this weekend. Gas is so freakin' expensive here that I shop for price although I stay away from places that look sketchy. Since Arco probably doesn't have the same additives as Shell or Chevron I run a bottle of Techron through it before every oil change and add a bottle of Lucas UCL every 5k miles and also add a dose of MMO to the fuel every 2-3K miles. I have been doing this for years with several vehicles, have never paid for a dealer FI cleaning and never experienced problems with a fuel pump or injectors, which supposedly are adversely affected with cheap gas and the presence of ethanol.

02-20-2012, 08:09 PM	#38 (permalink)
stratburst Base Member Join Date: Jan 2012 Location: Nashville, TN Posts: 78 Drives: 370z - Sport Touring Rep Power: 13	I'm averaging 22 but I definitely didn't buy a Z save a few bucks at the pump. This engine doesn't like to go slow. It begs to be pushed.

09-06-2019, 06:03 PM	#44 (permalink)
Magic Bus A True Z Fanatic Join Date: May 2012 Location: Honolulu Posts: 1,427 Drives: 17 6MT M2 Rep Power: 18753	No Chevron in Hawaii for the last 3 years. They sold all their assets here and stations all got rebranded to Texaco.

09-06-2019, 08:40 PM	#45 (permalink)
Ventruck Track Member Join Date: Jun 2016 Location: California Posts: 782 Drives: '13 Sport+Touring M6 Rep Power: 22897	maybe it's a mix of tune, shorter final and minimal highway, but I'm barely getting 13mpg

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