Premium Fuel in Supercharged Engines a must? - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-15-2006, 12:32 AM   #21
Member
Posts like a V-Tak
 
Join Date: Sep 2004
Location: Sarasota, FL / Yuma, AZ
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
TV_PRO_USMC is on a distinguished road
Default

Well I ran 87 in my vehicle until 105000 miles when it started to ping, i notice a pinging sound a second after i would floor it(after it would kick in). SO I looked it up on this website and figured out that 91 or above is required for the supercharged 3.8. So Now I put in 91 It doesnt ping AT ALL anymore. The weird thing is it took about 2or 3 full tanks of 91 gas to get rid of that pinging can anyone explain that?
_________________
95 SE Supercharged, 2 12'* bazooka subs, bazooka 750W amp, 1 farad cap, not to much else done to the car =P
TV_PRO_USMC is offline   Reply With Quote
Old 07-08-2006, 12:06 PM   #22
wug
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2005
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
wug is on a distinguished road
Default Fuel

I was away for awhile and wanted to thank you for your help. Onw little question. WIll using an Octane booster additive provide the same results as using premikum fuel if used at each fill? Is there such a thing as too much octane as in Premium Fuel used in additon to an additive? Thanks
wug is offline   Reply With Quote
Old 07-08-2006, 12:12 PM   #23
Senior Member
True Car Nut
 
toastedoats's Avatar
 
Join Date: Sep 2004
Location: Fitchburg Ma _ToastedRice_
Posts: 6,837
Thanks: 0
Thanked 0 Times in 0 Posts
toastedoats is on a distinguished road
Default Re: Fuel

Quote:
Originally Posted by wug
I was away for awhile and wanted to thank you for your help. Onw little question. WIll using an Octane booster additive provide the same results as using premikum fuel if used at each fill? Is there such a thing as too much octane as in Premium Fuel used in additon to an additive? Thanks
you probably wont benefit from anything higher than 91 or maybe 93 octane until you get some mods going into the car.. As for octane booster, i would just stick with 91 octane at the pump, and 100 (if you can get it) for the track. As for a substitute for high octane fuel, 0at roughly $5 extra per tank to use 91 octane, i really dont think its cost effective to use a booster, and im sure it doesnt yield the same result as high octane from the pump
toastedoats is offline   Reply With Quote
Old 07-08-2006, 12:27 PM   #24
Senior Member
True Car Nut
 
Join Date: Feb 2006
Location: Delaware & Long Island NY
Posts: 3,239
Thanks: 0
Thanked 0 Times in 0 Posts
Shadow is on a distinguished road
Default

Gas prices suck and its only gonna get worse but you have to use the gas that you car manufacturer reccomends. Yes your car will run on 87 but its still not the right fuel. If you plan on keeping your Bonneville for a long time give it the fuel it requires.

A dollar or two saved at the pump is not worth the potential long-term damage down the road.
Shadow is offline   Reply With Quote
Old 07-08-2006, 02:02 PM   #25
wug
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2005
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
wug is on a distinguished road
Default Re: Fuel

Thanks, I asked about the additive, I guess I was being a little too cheesy as the additive is $4.49 and a full tank at 10 cents extra is a min of $7 extra per tank for the 91. I guess it'* the pain of buying the additive and putting it in that makes that not worth the effort, but with a lot of driving the extra $3 adds up and the $7 extra per tank for 91 definately spells hundreds more per year for me, maybe more. Thanks again
wug is offline   Reply With Quote
Old 07-08-2006, 02:09 PM   #26
wug
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2005
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
wug is on a distinguished road
Default Fuel

That'* the thing, you are right, but what type of fuel did the previous owner use? Is it still going to benefit the car using 91 if they ran it on 87 for the first 4-5 years of it'* life? I guess so but if they did use 87, I see a car still running great after 5 years of use. I have heard auto experts both say no matter and others like many here say you must use it. Was also told by a female car sales rep that the supercharger will go after prolonged 87 use. Thanks for the input.
wug is offline   Reply With Quote
Old 07-08-2006, 02:14 PM   #27
wug
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2005
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
wug is on a distinguished road
Default Fuel

I was also told the newer models are setup to run fine on 87in contrast to the older models that were absolutely finicky with less than Premium fuel. 2-3 tanks to notice any difference in mileage or performance would be normal. I have never seen an instant gain in either with just one tank. I did notice after 2 or 3 tanks of 91 (as you mentioned), pickup/reaction time when the pedal is hammered is noticeably improved.
wug is offline   Reply With Quote
Old 07-08-2006, 02:19 PM   #28
wug
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Dec 2005
Posts: 70
Thanks: 0
Thanked 0 Times in 0 Posts
wug is on a distinguished road
Default Mileage tweaks?

Are there any mods or tips in general to gain better mileage (other than driving like Grandma of course)? Which mods give you the biggest bang for the buck with both performance and mileage (or at least mileage). I am most likely doing the K&N CAI and chip this summer, and I'm open to any other suggestions that will not cost me a years salary right off the bat. As I said before, in-toen mileage seem to suck VERY large in these. Much worse than I expected but my highway mileage is great (almost 800kms to a tank if all highway) as apposed to 380-450 in town
wug is offline   Reply With Quote
Old 07-08-2006, 02:37 PM   #29
Senior Member
True Car Nut
 
toastedoats's Avatar
 
Join Date: Sep 2004
Location: Fitchburg Ma _ToastedRice_
Posts: 6,837
Thanks: 0
Thanked 0 Times in 0 Posts
toastedoats is on a distinguished road
Default

the absolute best way to increase fuel milage is with a good tune-up, make sure that your running at 100% with fresh plugs, wires, etc.. also, replacing your stock airfilter with a K&N drop-in filter and a gutted airbox will net you a bit of milage increase, aswell as performance
toastedoats is offline   Reply With Quote
Old 07-08-2006, 03:05 PM   #30
Senior Member
True Car Nut
 
Join Date: Feb 2006
Location: Delaware & Long Island NY
Posts: 3,239
Thanks: 0
Thanked 0 Times in 0 Posts
Shadow is on a distinguished road
Default Re: Fuel

Quote:
Originally Posted by wug
I was also told the newer models are setup to run fine on 87in contrast to the older models that were absolutely finicky with less than Premium fuel. 2-3 tanks to notice any difference in mileage or performance would be normal. I have never seen an instant gain in either with just one tank. I did notice after 2 or 3 tanks of 91 (as you mentioned), pickup/reaction time when the pedal is hammered is noticeably improved.

Most supercharged cars I know of require premium fuel. My previous GXP would run on regular but was much quicker with premium as far as N/A engine go. I am guessing some sort of fuel additive would help when using regular fuel but dont know what would happen as far as long term usage.

I guess its the price you pay for having dare I say this about the 3800.....a performance engine....
Shadow is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Is premium gas necessary for a supercharged 3.8? ohio67 General GM Chat 9 11-01-2007 12:33 AM
Do I have to use Premium Fuel at high altitude Hans General GM Chat 23 04-21-2006 12:51 AM
reliability of supercharged engines laff66 2000-2005 9 10-30-2004 08:19 PM
Chipped or PCM'ed car owners (premium fuel???) Glasuan Performance, Brainstorming & Tuning 6 03-05-2004 07:54 PM
Difference between Supercharged and N/A Engines? h1081dan General GM Chat 22 10-10-2003 01:00 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:52 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.