Recent Topics
Garden Hose for Gasoline Transfer?
by viscous - 07/05/20 11:55 PM
Changing coolant-water ratio of 50-50 premix?
by TrustyAutos - 07/05/20 11:27 PM
ring terminals - really?
by DirtyOilGuy - 07/05/20 11:27 PM
Which oil is better out of these
by Bazza32 - 07/05/20 11:08 PM
Automatic transmission shift feel
by Spetz - 07/05/20 10:51 PM
Opinions On This Laptop
by BlueOvalFitter - 07/05/20 08:02 PM
Anyone else see Hamlin hood flap fly out?
by 555 - 07/05/20 07:54 PM
Husqvarna AWD with a Honda engine
by yeehaw1960 - 07/05/20 07:02 PM
Recommended car shipper?
by HawkeyeScott - 07/05/20 06:10 PM
My 2011 Sonata SE 2.0T
by strongt - 07/05/20 05:39 PM
Throwing in the towel on local clothing retailers
by Reddy45 - 07/05/20 05:09 PM
Castrol Edge vs Edge EP
by Gene K - 07/05/20 05:03 PM
Car related YouTube channels
by dishdude - 07/05/20 04:59 PM
Suspension Bushings Oil Resistant?
by TacoFergie - 07/05/20 03:43 PM
Building a solar generator
by BeerCan - 07/05/20 03:22 PM
Used CVT fluid in a power steering application
by mahanddeem - 07/05/20 02:06 PM
New Mobil1 EP HM, API SP label design.
by wemay - 07/05/20 02:00 PM
Newest Members
Turboman92, TrustyAutos, TacoFergie, electro, SilentC
71852 Registered Users
Who's Online Now
55 registered members (Ag76, Alex38, Arob, AlienBug, ae101, 5 invisible), 1,189 guests, and 23 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics307,468
Posts5,311,699
Members71,852
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 3 1 2 3
interesting video reg vs premium #5441058 05/28/20 02:55 PM
Joined: Apr 2004
Posts: 731
R
raaizin Offline OP
OP Offline
R
Joined: Apr 2004
Posts: 731
Interesting video of a vw gti 2.0t turbo running regular vs premium. Running regular they dyno'd and had 236hp running premium 241 hp. Dont really thinlk you would notice 5hp. For those of you on the fence this is a strong argument for regular, I would just buy it from a good source. I have run it in my 2018 A4 for 20k and 2018 Q5 for 18 k miles. Before had a 2007 A6 3.2 with 12.5 :1 compression which ran on regular for 150k miles without issue. And that is extremely high compression ratio in that engine. Just wanted to pass some factual info....


https://www.youtube.com/watch?v=d8L-X89duEs

Re: interesting video reg vs premium [Re: raaizin] #5441060 05/28/20 03:02 PM
Joined: Mar 2013
Posts: 6,919
S
skyactiv Offline
Offline
S
Joined: Mar 2013
Posts: 6,919
Isn't Britain's low octane gas equivalent to a 90 octane in the USA? So this across the pond might not be valid here.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 18' Elantra Sport 6 speed manual
The rude guy that points out reality


Re: interesting video reg vs premium [Re: raaizin] #5441095 05/28/20 03:58 PM
Joined: Apr 2004
Posts: 8,689
P
pbm Offline
Offline
P
Joined: Apr 2004
Posts: 8,689
Last week I filled up in NJ and regular was $1.89 a gallon while premium was $2.79 a gallon....I'd take the 5hp hit at
that price differential....


'Journalism is Dead'
Re: interesting video reg vs premium [Re: raaizin] #5441097 05/28/20 03:59 PM
Joined: Apr 2020
Posts: 206
R
ripcord Offline
Offline
R
Joined: Apr 2020
Posts: 206
The numbers are not equivalent between the UK and the USA. Britain uses the RON test to rate octane and in the USA the octane rating on the pump is calculated as (RON+MON)/2. 92 octane in the UK is more or less equivalent to 88.5 octane in the US. 95 octane is equivalent to 91 octane in the US.

Re: interesting video reg vs premium [Re: raaizin] #5441102 05/28/20 04:05 PM
Joined: Nov 2018
Posts: 2,645
Skippy722 Online Happy
Online Happy
Joined: Nov 2018
Posts: 2,645
Just run what is recommended in your owners manual.


2019 Ram 1500 Classic
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: interesting video reg vs premium [Re: raaizin] #5441119 05/28/20 04:26 PM
Joined: Jan 2020
Posts: 86
J
Jake_J Offline
Offline
J
Joined: Jan 2020
Posts: 86
I'm a little surprised that the power loss is not a little more, I would of expected a 10 or 15 hp loss with regular. But with a modern fuel injected computer control car they're very good a adjusting the timing a touch to compensate for the higher volatility of regular gasoline. I know a few people that drive a cars designed for premium and generally only use regular and don't really notice the difference, I think even if you lost 10hp off a 240hp engine you'd be hard pressed to feel it in the old butt dyno.

Re: interesting video reg vs premium [Re: ripcord] #5441126 05/28/20 04:39 PM
Joined: Mar 2016
Posts: 2,981
C
CR94 Offline
Offline
C
Joined: Mar 2016
Posts: 2,981
Originally Posted by ripcord
The numbers are not equivalent between the UK and the USA. Britain uses the RON test to rate octane and in the USA the octane rating on the pump is calculated as (RON+MON)/2. ...
The advertised octane numbers were RON in the US too, until the government mandated posting (RON+MON)/2, on the grounds that that average better correlates with real-world tendency to knock.


2011 Toyota Prius now at 111K
1981 Mazda GLC (323) retired at 606K
1972 Subaru DL retired at 190K
1954 Chevrolet retired at 121K
Re: interesting video reg vs premium [Re: Skippy722] #5441180 05/28/20 05:45 PM
Joined: Apr 2020
Posts: 104
T
tbm5690 Offline
Offline
T
Joined: Apr 2020
Posts: 104
Originally Posted by Skippy722
Just run what is recommended in your owners manual.


Agreed, and I would add that if you drive a vehicle where premium is "recommended" just use it...the price difference here is about $0.30 per gallon and you typically get better detergents and less (or no) ethanol.


2014 Acura MDX Tech SH-AWD
2014 Nissan Maxima SV Sport/Tech
2007 Honda Shadow Spirit VT1100C
Re: interesting video reg vs premium [Re: raaizin] #5441205 05/28/20 06:14 PM
Joined: Aug 2010
Posts: 2,318
B
benjy Offline
Offline
B
Joined: Aug 2010
Posts: 2,318
check out goapr.com for real results torque 223 stock tuned with 93 oct 341!!! hp 221 stock 278 tuned!! todays DI engines leave a LOT on the table!!

Re: interesting video reg vs premium [Re: tbm5690] #5441213 05/28/20 06:31 PM
Joined: Jan 2006
Posts: 1,370
A
ammolab Offline
Offline
A
Joined: Jan 2006
Posts: 1,370
Originally Posted by tbm5690
Originally Posted by Skippy722
Just run what is recommended in your owners manual.


Agreed, and I would add that if you drive a vehicle where premium is "recommended" just use it...the price difference here is about $0.30 per gallon and you typically get better detergents and less (or no) ethanol.


The difference here can be close to $0.90 Per gallon and as Ethanol BOOSTS octane ...I bet on average you get more of it in premium gasoline. And how can anyone know that there is “better” detergents in premium gasoline.


1998 Jeep Cherokee
2011 BMW R1200R
2005 Kaw Ninja 250
1994 Jeep Wrangler 2.5L
2016 Chevy SS Sport Sedan
Re: interesting video reg vs premium [Re: ammolab] #5441222 05/28/20 06:39 PM
Joined: Nov 2018
Posts: 2,645
Skippy722 Online Happy
Online Happy
Joined: Nov 2018
Posts: 2,645
Originally Posted by ammolab
Originally Posted by tbm5690
Originally Posted by Skippy722
Just run what is recommended in your owners manual.


Agreed, and I would add that if you drive a vehicle where premium is "recommended" just use it...the price difference here is about $0.30 per gallon and you typically get better detergents and less (or no) ethanol.


The difference here can be close to $0.90 Per gallon and as Ethanol BOOSTS octane ...I bet on average you get more of it in premium gasoline. And how can anyone know that there is “better” detergents in premium gasoline.


It’s a 50 to 60 cent spread here between 87 and 93. At current prices, it’s ~$30 to fill up with 87 assuming 15 gallons, and ~$37 to fill up with 93.

That being said, I use 89 (recommended) in my ram even though it would run just fine on 87 per the manual.


2019 Ram 1500 Classic
2018 Dodge Grand Caravan GT

Slight Mopar obsession
Re: interesting video reg vs premium [Re: ammolab] #5441249 05/28/20 07:15 PM
Joined: Apr 2020
Posts: 104
T
tbm5690 Offline
Offline
T
Joined: Apr 2020
Posts: 104
Originally Posted by ammolab
Originally Posted by tbm5690
Originally Posted by Skippy722
Just run what is recommended in your owners manual.


Agreed, and I would add that if you drive a vehicle where premium is "recommended" just use it...the price difference here is about $0.30 per gallon and you typically get better detergents and less (or no) ethanol.


The difference here can be close to $0.90 Per gallon and as Ethanol BOOSTS octane ...I bet on average you get more of it in premium gasoline. And how can anyone know that there is “better” detergents in premium gasoline.


The premium here (91) is ethanol-free as opposed to most of the 87 being E-10.


2014 Acura MDX Tech SH-AWD
2014 Nissan Maxima SV Sport/Tech
2007 Honda Shadow Spirit VT1100C
Re: interesting video reg vs premium [Re: pbm] #5441387 05/28/20 10:31 PM
Joined: Dec 2002
Posts: 44,232
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 44,232
Originally Posted by pbm
Last week I filled up in NJ and regular was $1.89 a gallon while premium was $2.79 a gallon....I'd take the 5hp hit at that price differential....


The last number of years premium price premiums have gone out of whack from their traditional norms.

The one thing to determine is if it’s just HP, or economy too. My Saab was rated for premium, but could use both, and the fuel economy was favorable with premium.

Re: interesting video reg vs premium [Re: raaizin] #5441448 05/29/20 04:36 AM
Joined: Apr 2014
Posts: 1,721
D
Delta Offline
Offline
D
Joined: Apr 2014
Posts: 1,721
In the 3 years I've had my GTI (2.0T) I've never run 87 in it. During the winter I'll run 89 and summer 93. How much extra power it delivers who knows, but it does feel slightly smoother. That and I do see a little bit better fuel economy. On my backroads commute I average 35-37mpg depending on how frisky I feel like driving. The cost difference is minimal as the fuel tank is pretty small. We also do not have many top-tier fuel stations in my area and the ones that are around are too far out of the way for me.


'17 VW GTI 2.0T - 6MT - 22K - Motul X-Cess 5w40
'15 Camry SE - 2.5 - 27K - Edge 0w20
'09 Tacoma TRD Offroad 4x4 - 4.0 - 142K - RGT 5w30
Re: interesting video reg vs premium [Re: raaizin] #5441529 05/29/20 08:03 AM
Joined: Feb 2005
Posts: 2,095
B
bulwnkl Offline
Offline
B
Joined: Feb 2005
Posts: 2,095
Originally Posted by raaizin
Interesting video of a vw gti 2.0t turbo running regular vs premium. Running regular they dyno'd and had 236hp running premium 241 hp. Dont really thinlk you would notice 5hp.


2% is probably within margin or error of the dynamometer, don’t you think?


I use speech recognition frequently. Please excuse any consequent grammatical or typographical errors.
Page 1 of 3 1 2 3
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™