Engine & Internal Chat about beefing up your engine's insides here.

Octane gas

Thread Tools
 
Search this Thread
 
  #1  
Old 04-11-2008, 09:58 AM
mukman22's Avatar
Thread Starter
Join Date: Feb 2008
Location:
Posts: 53
Default Octane gas

hey everyone
if i put octane gas in my honda accord will i get any difference in the perfromace? will it help the car run better?
 
  #2  
Old 04-11-2008, 10:13 AM
00AccordLX5spd's Avatar
Registered User
Join Date: Jan 2007
Location: Brandon, MS
Posts: 4,322
Default RE: Octane gas

I assume you mean higher octane than regular 87?
If so, the answer is no, you won't get better performance. Honda Accords were made to perform optimally on 87 octane gas. Unless you do some engine mods that require premium (i.e. turbo), higher octane gas will not do anything. If anything, it will actually hurt your gas mileage and may cause engine damage in the long run.
 
  #3  
Old 04-11-2008, 10:16 AM
mukman22's Avatar
Thread Starter
Join Date: Feb 2008
Location:
Posts: 53
Default RE: Octane gas

i only put it onece so should i be woried about it?
 
  #4  
Old 04-11-2008, 10:17 AM
mukman22's Avatar
Thread Starter
Join Date: Feb 2008
Location:
Posts: 53
Default RE: Octane gas

oh and i always put premium gas...just thought i would try a little higher to see if it made a difference but i guess not
 
  #5  
Old 04-11-2008, 10:19 AM
00AccordLX5spd's Avatar
Registered User
Join Date: Jan 2007
Location: Brandon, MS
Posts: 4,322
Default RE: Octane gas

I wouldn't worry about it, but I wouldn't waste my money on premium anymore
 
  #6  
Old 04-11-2008, 10:26 AM
mukman22's Avatar
Thread Starter
Join Date: Feb 2008
Location:
Posts: 53
Default RE: Octane gas

oh okay..yeah i know..but i found out that if putting premium in the 05 V-6 accords yours spose to get more HP according tohonda engineers if putting premium in the 05 V-6 accords you are spose to get 250 hp rater then 240 i dont know i looked it up but not sure i dont have the webpage right now but iwill post it later on and u can read it yourself
 
  #7  
Old 04-11-2008, 10:29 AM
00AccordLX5spd's Avatar
Registered User
Join Date: Jan 2007
Location: Brandon, MS
Posts: 4,322
Default RE: Octane gas

Yeah if you could find thatsite and link it upit would be great. Believe it or not, I do actually like being proven wrong on some topics
 
  #8  
Old 04-11-2008, 11:45 AM
RTexasF's Avatar
Super Member
Join Date: Nov 2004
Location: Brownsville, TX 78521
Posts: 2,384
Default RE: Octane gas

The designer ofHonda's 3.0l V-6 is the one that made that statement in an interview. He said that 10 more horsepower was available when using 93 octane or better. I've posted that damned article a hundred times for those thinking I was blowing smoke and now I can't find it. With fuel prices today it wouldn't be worth it to me to cough up 20 cents or more a gallon for 10 horses at the flywheel.

This isn't the one I was looking for but:

The J30 displaces 3.0L and is a SOHCVTEC design. Output for the J30A1 was 200hp (149kW) and 195ft·lbf (264N·m) of torque. The J30A4 pushed output to 240hp (179kW) and 212ft·lbf (287N·m) using a three-way VTEC system, higher (10:1) compression ratio, and a novel exhaust manifold cast as one piece with the cylinder head. This version was on the Ward's 10 Best Engines list for 2003 and 2004. Honda provided an undocumented, but verified 10 hp boost when owners use 93 octane fuel, resulting in 250hp. The IMAhybrid version was on the list for 2005. In 2006 to mark the 30th anniversary of the Accord, Honda created the J30A5, which boosted output to 244hp (SAE Net 08/04) and 211ft·lbf (SAE Net 08/04) of torque. According to Honda, horsepower gains were achieved with extensive improvements to the airflow of the intake and exhaust systems.
 
  #9  
Old 04-11-2008, 12:36 PM
Join Date: Feb 2008
Location:
Posts: 569
Default RE: Octane gas

[sm=gears.gif]J series rule!!!!!!!!!!!!![sm=Awwww.gif]
 
  #10  
Old 04-11-2008, 02:27 PM
klrspz's Avatar
Been Around A Long Time Member
Join Date: Sep 2007
Posts: 999
Default RE: Octane gas

I've noticed a bit of a performance increase when i used the highest octane after months of 87...

however it's very very VERY important to notate that octate has nothing to do with performance, but rather the compression and knocking characteristics of your 'tanes (iso-octane and heptane) mixtures.. iso-octane is rated at or near 100% octane and is mixed with heptane (a 0% octane ratio) to make your octanes you see in gas stations (87, 91, 93, etc)

deflagration *should* be consistent in theory, but i personally believe that if your engine is knocking less then it should probably perform a tad better... which is why some people see this performance increase, and others don't.

i agree that 10hp isn't worth the ongoing cost.. if i could do something to the car to make the permanent for one cost, that'd be more beneficial.
 


Quick Reply: Octane gas



All times are GMT -5. The time now is 02:14 PM.