Shell V-Power vs Chevron

Ridgerunner · 02-18-2012, 12:08 AM

Shell V power is 93 octane

Apoc370z · 02-18-2012, 12:19 AM

Quote:

Originally Posted by Ridgerunner

Shell V power is 93 octane

oh is it? that explains EVERYTHING

LakeShow · 02-18-2012, 12:29 AM

I put Mobil 1 93octane

Apoc370z · 02-18-2012, 12:37 AM

Quote:

Originally Posted by LakeShow

I put Mobil 1 93octane

i dont think i have ever seen a 93 octane mobil 1 here

or else i would probably support mobile over shell

Chan Chee Hoe · 02-18-2012, 12:49 AM

In S'pore,the most expensive petrol is Shell V-Power,so it is the best around,but Chevron[known as Caltex here] also quite good.

Vince · 02-18-2012, 04:37 AM

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?

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.

mantella87 · 02-18-2012, 09:10 AM

Quote:

Originally Posted by Ridgerunner

Shell V power is 93 octane

Actually, Shell V-Power is 91 octane in most of the western states. We don't get 93 around here. When it comes to Chevron (with Techron) or Shell V-Power, they're both excellent.

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...

02-18-2012, 12:29 AM	#3 (permalink)
LakeShow A True Z Fanatic Join Date: Dec 2010 Location: L.I., NY Posts: 5,307 Drives: Everything Rep Power: 26	I put Mobil 1 93octane __________________ \|2013 Audi S4\|Ibis White/Black\|S-Tronic P+\| \|2013 370z\|PearlWhite/Persimmon\|Touring/Sport/Nav\|F.I. CBE 18" CF\| \|Sold\|2011 370z\|Gun Metallic\|Touring/Sport/Nav\|

02-18-2012, 04:37 AM	#6 (permalink)
Vince Base Member Join Date: Dec 2011 Location: Bend, OR Posts: 161 Drives: 12 370Z PW T/S/N 6MT Rep Power: 14	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? __________________ -Vince 2012 Nissan 370Z Pearl White/Persimmon Touring/Sport/Nav 6MT 370Z Production Statistics - VIN Lookup Utility

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02-18-2012, 12:08 AM	#1 (permalink)
Ridgerunner Base Member Join Date: Jul 2010 Location: Arkansas Posts: 79 Drives: 09 370Z Black 6M SP Rep Power: 15	Shell V power is 93 octane

02-18-2012, 12:49 AM	#5 (permalink)
Chan Chee Hoe Track Member Join Date: Mar 2009 Location: Singapore Posts: 861 Drives: 370z,Yellow,7sp A Rep Power: 18	In S'pore,the most expensive petrol is Shell V-Power,so it is the best around,but Chevron[known as Caltex here] also quite good.