V6 fuel switch 87 to a higher grade

[jmaryt]

Originally Posted by Jide25

I've always put 91 or 93 in(what ever is available). I guess that makes me no help, but I just have done it because I figure even if it doesn't do anything performance wise, I'll pay the extra for engine longevity...

engine longevity?..please inform us of the how,and why of this "miraculous" development!..

[jmaryt]

Originally Posted by chevyk1

I have tried both in mine and noticed no difference except at the cashier.

very "wise" individual!..

[jmaryt]

Originally Posted by spyderbuddy

Not this again
People y'all need to remember this engine has a higher compression ratio than the V8 engines in the Big Brother 6.2. So it is simple if the big boys need to run premium in the 6.2 then reason would tell you the 3.6 can benifit from the same. I know that the V6 is direct injection and that the general designed this engine to run on 87 octane. I have used 87 and 93 and not that the engine is making more power or even getting better mpg's. My car just seems happier

nice to "feel" happy all the time!..send me the difference "in money" between 87,and 93 gas,and i will gladly "feel" happy along with you!..ohhh!..and mobile, shell,and sunoco will "feel" happier too!

[jmaryt]

Originally Posted by ffrcobra_65

why didnt u guys buy the SS to begin with instead of piece mealing a hp here and there from super-duper Dash Hawk (adds 100hp) , using higher octane than required, etc. etc? makes no sense.
Just wash your car before you take it for a drive, you get the same "it feels faster" feeling.

yesss!..the wash definitely makes the car "feel" faster,because the absence of "dirt" adds to the aerodynamic properties of the car!..anybody got a "shovel?"
(lol!)...just sayin!

[gghg]

For the 1st year that I owned my 2LT I used only 87 octane and would only use shell or Petrocan (in Canada) both good fuels, Shell more so. I noticed that the exhuast tips had some black soot build up my brother said that he only uses the mid grade fuel in his 2010 Challenger (V6) to avoid that build up. I cleaned up the inside of the tips switched grades and the tips stayed clean. Makes you think what is happenning to the valves and injectors. I felt a difference in performace, was that "physcological" maybe. Bottom line if runs cleaner.

For those with the SS asking why do all the mods to the V6 Just buy a SS, no different when in the lated 60's guys were moding the small blocks, why didn't the by the SS with the 396 or a Yenko with 427. bottom line is money, you can slowly mod to gain performance.

[scrming]

Originally Posted by jmaryt

your opinion is an accurate one!..i agree..the "general" indicates the car requires 87 octane!..if you use a higher octane than is required,then you are experiencing an ''event physcological",in that you ''think" you are noticing an improvement,however,it is "all in your head" as others have reported!

So do you understand how modern engines work? Spark advance, spark retard, knock sensors???? The data clearly shows the LLT runs better with higher octane fuel... There is nothing psychological about it... (i'm assuming that is the word you are looking for...)

[Camaro Freak]

Originally Posted by ffrcobra_65

why didnt u guys buy the SS to begin with instead of piece mealing a hp here and there from super-duper Dash Hawk (adds 100hp) , using higher octane than required, etc. etc? makes no sense.
Just wash your car before you take it for a drive, you get the same "it feels faster" feeling.

another Moron

[mickss]

Originally Posted by ffrcobra_65

why didnt u guys buy the SS to begin with instead of piece mealing a hp here and there from super-duper Dash Hawk (adds 100hp) , using higher octane than required, etc. etc? makes no sense.
Just wash your car before you take it for a drive, you get the same "it feels faster" feeling.

Is there ANYTHING that the V6 guy`s do to their car`s that you can`t find something smarpy or snarky to say about it?
They want to mod their V6`s for more HP, the same reason you put a supercharger on your SS.

[King Sun]

Originally Posted by ffrcobra_65

why didnt u guys buy the SS to begin with instead of piece mealing a hp here and there from super-duper Dash Hawk (adds 100hp) , using higher octane than required, etc. etc? makes no sense.
Just wash your car before you take it for a drive, you get the same "it feels faster" feeling.

you mom didn't hug you enough when you was young? :(

[VR Baron]

Originally Posted by gghg

For the 1st year that I owned my 2LT I used only 87 octane and would only use shell or Petrocan (in Canada) both good fuels, Shell more so. I noticed that the exhuast tips had some black soot build up my brother said that he only uses the mid grade fuel in his 2010 Challenger (V6) to avoid that build up. I cleaned up the inside of the tips switched grades and the tips stayed clean. Makes you think what is happenning to the valves and injectors. I felt a difference in performace, was that "physcological" maybe. Bottom line if runs cleaner.

For those with the SS asking why do all the mods to the V6 Just buy a SS, no different when in the lated 60's guys were moding the small blocks, why didn't the by the SS with the 396 or a Yenko with 427. bottom line is money, you can slowly mod to gain performance.

I found out the same thing but in my case it was the gas station. I was running 87 and 91 from the same Shell station for 9 months and always had alot of soot, either octane. I now have gone back to Chevron using two different stations and both octane's now have fairly clean tips. also the car runs a little better also, a little smoother acceleration off idle. Shell is supposed to keep your engine clean but maybe not as well as Chevron or maybe this guy has dirty tanks etc? Whatever it is I'm staying with Chevron.

And I hope I wasn't going to wake up today to see more of the 87 vs91-93 stuff from people not seeing all the other posts on here but it's cool. See all of Srming's posts and search all the others who have gotten better performance at the track with higher octane and I believe a thread from I think he's called Racerrx this Aug or Sept I believe and has dynoed under different conditions showing the gains. The point here people and their factless opinions are missing is we are seeming to get better performance through better gas BECAUSE IT ALLOWS IN THE V6 MORE TIMING ADVANCE!! iT'S NOT ROCKET SCIENCE !! And it's not a feel good in you head thing but Also its basic engine operation that has always been there but restricted to octane levels, engine design and smog laws. What we are all learning all the time about this v6 is it is an amazing little motor, the reason this works is the ecu and DI technology it has and all of the v8's don't. The v8's, and I have an LS1 that is tuned, can run only a max of about 28 degrees timing with 92 octane, higher if 93.The best power is made at 25-27 degrees if only 91 is available. Thing is you have to set the max timing and fix it to be safe so timing doesnt get pulled or it pulls alot and and down goes the power. Mine is at 26 degrees to also compensate for hot weather also so this doesn't happen.I have max power all the time and timing isn't pulled. Now what we have here in the v6 is automatic adjusting timing, the v8's does to but basically tends to pull timing more then advance it as they have to run 91 or higher and the engine design is peaked out already and cant really use more then 25-27 degrees total.The v6 it seems is set high from the factory,the ecu,di part, to take advantage of really good gas and it backs timing down accordingly to the octane you are running, pretty neat I think, and lets us run what we want with the power rating based on the lowest octane and timing levels and we don't have to worry about pinging or tuning to any specific octane as in the v8's. I mean think about it, Scrming on real 93 octane and cool weather got 36 degrees advance on a 11.3/t cr motor? Incredible! That is what back in the day chevy v8s ran best at, 34-36 degrees. Tecnology as they say is a wonderful thing!! Anyway that's all as I'm going blind here typing to much. Hope it helps to shed some light and if I have gotten any facts wrong please chime in, remember we are all learning here and having fun doing it!!

[mickss]

Originally Posted by gghg

For the 1st year that I owned my 2LT I used only 87 octane and would only use shell or Petrocan (in Canada) both good fuels, Shell more so. I noticed that the exhuast tips had some black soot build up my brother said that he only uses the mid grade fuel in his 2010 Challenger (V6) to avoid that build up. I cleaned up the inside of the tips switched grades and the tips stayed clean. Makes you think what is happenning to the valves and injectors. I felt a difference in performace, was that "physcological" maybe. Bottom line if runs cleaner.

For those with the SS asking why do all the mods to the V6 Just buy a SS, no different when in the lated 60's guys were moding the small blocks, why didn't the by the SS with the 396 or a Yenko with 427. bottom line is money, you can slowly mod to gain performance.

Let me add something else to the building up a small block over ordering a big block for that era and even today, anybody can go into a dealership and check the hi-performance box for optional engines, it`s more satisfying for some to build and make horse power as opposed to it being handed to you. I like it when the under dog kicks the big dog`s ass.

[GretchenGotGrowl]

Originally Posted by blackbee

More typical stupid comments. Why didn't you buy a rocket car instead of supercharging an ss? If thats what you have. And isn't the ss fast enough stock ? Why need a supercharger? And by now I don't think after all the posts on this site that anyone here ss or lt has to explain why we mod the cars or any cars for that matter. Some people just don't get it.

Originally Posted by jmaryt

your opinion is an accurate one!..i agree..the "general" indicates the car requires 87 octane!..if you use a higher octane than is required,then you are experiencing an ''event physcological",in that you ''think" you are noticing an improvement,however,it is "all in your head" as others have reported!

Several threads on this site provide evidence. You simply mis-interpreted the owner's manual and made a claim. The ball's in your court...provide EVIDENCE to back up your claim!

[KMPrenger]

Originally Posted by ffrcobra_65

why didnt u guys buy the SS to begin with instead of piece mealing a hp here and there from super-duper Dash Hawk (adds 100hp) , using higher octane than required, etc. etc? makes no sense.
Just wash your car before you take it for a drive, you get the same "it feels faster" feeling.

lol...more hate. Big suprise there.

The Dash Hawk is a monitoring tool...not used for enhancing performance. Not sure where you got that from....but I'm guessing you probably just ASSumed since we're just dumb V6 owners who don't know anything, we just thought this neat little thingy with graphs and data would make our cars run faster.

[ROD1]

In conclusion then, it seems that bad gas or some guy pumping in 87 into the 93 tank at the station was the culprit? You dont think the ethanol was an issue? And as for all the knuckleheads chiming in, I did good withholding my comments Scrm! Im working it? LoL