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@  jawdog : (18 April 2014 - 08:23 PM) No need to worry. You don't need an exploit to read the traffic, it's not encrytped anyways....lol
@  cryptnix : (18 April 2014 - 07:41 PM) This server isn't, technically susceptible to the Heartbleed, unless they try and have fun with SSH, but I firewall SSH to just my IP addresses or subnets... I've been reissuing certificates anyhow, so no need to worry ... :P
@  keithr182 : (18 April 2014 - 12:02 AM) Heartbleed attacks sites that use SSL, this site doesn't. If it has an https at the beginning then it's susceptible. but this is just plain old http
@  spcrollins405 : (17 April 2014 - 11:55 PM) Hey. Anyone know if our server is susceptible to the Heartbleed bug?
@  99RegalClone : (17 April 2014 - 07:38 PM) cool @nateto, be sure to take lots of pics, and even a write up for guys like you and i that plan to do this swap in our 3100. i hope you get your PCM sorted out
@  Nateteo : (16 April 2014 - 02:06 AM) Why does anyone know if a PCM relearn will trip the battery light if the PCM is not re-flashed and crank shaft position not relearned I am asking this because I am gonna get the chev dealer that's part of the auto group that I work for to flash my new PCM and give me a idea what could have ruined my last PCM. 99regalclone I am pretty sure I am gonna do a l67 4t65e hd subframe swap after summer.
@  steveyjr1982 : (14 April 2014 - 08:08 PM) Therefore no programming is needed
@  steveyjr1982 : (14 April 2014 - 08:07 PM) If you're replacing the ignition switch then there is no need to mess with the cylinder as it is separate from the switch itself.
@  99RegalClone : (14 April 2014 - 05:19 AM) ok @roadmaster ill check out the link and see what i will end up doing
@  RoadMonster : (13 April 2014 - 08:32 PM) clubgp can be very useful if you know how to use the search.
@  RoadMonster : (13 April 2014 - 08:31 PM) http://www.clubgp.co.../tm.asp?m=20670
@  RoadMonster : (13 April 2014 - 07:48 PM) take it apart, clean the copper contacts and put it back together
@  RoadMonster : (13 April 2014 - 07:47 PM) you can rebuild the switch if you want to.
@  99RegalClone : (13 April 2014 - 05:29 AM) do i buy a new ign switch or chance getting one from the JY. i saw that the switch connects to the bottom of the column and shouldnt be too hard
@  99RegalClone : (13 April 2014 - 05:29 AM) i know with the ign cylinder it will need to be programed because of the chip
@  steveyjr1982 : (13 April 2014 - 05:26 AM) You can do the switch yourself, you just have to be careful of the airbag.
@  99RegalClone : (13 April 2014 - 05:22 AM) im having a no start issue with my 99 century, but when you turn the key nothing happens, ive read this is related to the ignition switch or key cylinder. If its the switch, can i do it myself and not pay dealership price for that?
@  99RegalClone : (13 April 2014 - 05:21 AM) odd @nateto, the one i have for mine, the DIC lit up, couldnt cycle through the features but mine came on
@  steveyjr1982 : (13 April 2014 - 03:43 AM) writeups
@  steveyjr1982 : (13 April 2014 - 03:43 AM) Theres a few riteups here to fix that DIC issue

Photo
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91 octane vs 94 octane (10% ethanol)


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13 replies to this topic

#1 Margarito

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Posted 13 March 2010 - 09:09 AM

Guys, what octane does the Series II 3800 engine like more?

I notice my car has much better fuel consumption with the 91 octane Shell V-Power which is pure gasoline and whatnot, car seems to run a little smoother maybe.

However, it seems to me, I have more explosive power with the 94 octane with 10% ethanol added, I am not 100% sure though.

I have a few questions.

Ethanol... what's the deal with ethanol, it's not 'good' for the engine is it? I know it has a high octane rating but other than that, is it possibly harmful?

I remember reading on GP forum of a guy who said he will never put any gas mixed with ethanol like Sunoco or Petro Canada do with their 94 octane, and he would rather run 91 octane with no ethanol.

Any ideas guys?

I'm still not sure what gas to use longterm... Shell V power 91 or Petro Canada 94.

Would going WOT on the highway with each gas, and seeing how many lbs of boost I get, be a good indicator of what gas is better? Making sure, that of course temperature is abou the same on both test days, or is that pointless?

Let's hear everyones thoughts on using 91 vs 94 with ethanol :)
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#2 rubberhead

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Posted 13 March 2010 - 10:19 AM

tried both, tracked the fuel mileage, similar driving conditions and found that my car likes the 91. KR didn't change much, a tad lower maybe with the 91. and its a couple pennies a litre cheaper.

/my $0.02
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#3 Geojb

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Posted 13 March 2010 - 01:50 PM

Would going WOT on the highway with each gas, and seeing how many lbs of boost I get, be a good indicator of what gas is better? Making sure, that of course temperature is abou the same on both test days, or is that pointless?

I would say pointless.
Too many variables with going WOT & temps & such to use boost as an inticator.
Calculations real ones, not DIC. would be the best for over all MPG.
For performance Track times or something that could measure 0-60 MPH times.
I thought I read somewhere tht ethonal changes the fuel ratio or we need to change "that 14.7 to 1" ratio with a tuner for best performance/KR/MPG.
Just my 0.02
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#4 djlamp14

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Posted 13 March 2010 - 07:38 PM

Ethanol is basically alcohol (rated at around 105-110 octane). It will get you more power but less gas mileage. So a little less KR (burns cooler I believe :think:) You will lose some number of MPG. Here in Minnesota a lot of the high HP guys tune and run for the E-85. They are able to run a little more stable with pulleys around 2.8 and 2.6 size. I have rode in a 11 second GP running E-85 and it will blow your balls off! >-) It also smells like Race gas
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#5 Geojb

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Posted 13 March 2010 - 10:35 PM

Aggggg, Ala Homer...... :drool:

It also smells like Race gas


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#6 djlamp14

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Posted 13 March 2010 - 10:58 PM

Aggggg, Ala Homer...... :drool:

It also smells like Race gas



...Just another positive. IMO at least.
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#7 uman44

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Posted 13 March 2010 - 11:05 PM

Ethanol is basically alcohol (rated at around 105-110 octane). It will get you more power but less gas mileage. So a little less KR (burns cooler I believe :think:) You will lose some number of MPG. Here in Minnesota a lot of the high HP guys tune and run for the E-85. They are able to run a little more stable with pulleys around 2.8 and 2.6 size. I have rode in a 11 second GP running E-85 and it will blow your balls off! >-) It also smells like Race gas



ABStiffGS's Regal was in the 11's on E85 and it smelled like corn...

Ethanol burns cooler (reducing KR), but releases fewer BTU's meaning less power per unit compared to gasoline (lower MPG). Gasoline companies add Ethanol inorder to use lower octane gasoline with Ethanol pumping up the octane.

As far as the OP's question... I always choose non-ethanol, even with the higher octane 10% stuff. However, I don't think either of us are pushing enough HP or fine tuning enough to make a difference.
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#8 MikeGS

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Posted 13 March 2010 - 11:09 PM

I liked the good old days when you could get 93 or 94 octane where there was no ethanol in it... The best of both worlds.

#9 Freddotron

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Posted 14 March 2010 - 06:38 AM

To the OP if you live in ontario imo the sunoco 94 is crap. Shell 91 Is the only thing I'll put in my tank. No exceptions. I can't speak for your 94 octane gas if your from the states. all i know is that in ontario the best gas you can get is shell 91
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#10 Margarito

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Posted 14 March 2010 - 01:34 PM

To the OP if you live in ontario imo the sunoco 94 is crap. Shell 91 Is the only thing I'll put in my tank. No exceptions. I can't speak for your 94 octane gas if your from the states. all i know is that in ontario the best gas you can get is shell 91


Im in Montreal.

I think Sunoco 94 is pretty much the same as Petro Canada 94.

Yeah Ill keep 91 V-power, thanks guys :_)
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#11 chromeGS

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Posted 14 March 2010 - 02:44 PM

my shell only has 93 with no ethinal* in it, well that is what the clerk said
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#12 MikeGS

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Posted 14 March 2010 - 08:07 PM

my shell only has 93 with no ethinal* in it, well that is what the clerk said

Never mind the clerk, look for the sticker on the pump. By law there should be on there.

#13 Crazyguy03

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Posted 14 March 2010 - 10:42 PM

Gas pumps are supposed to place the ethanol percentage somewhere where you can see it. In NY almost alll the stations say may contain up to 10% ethanol

Now my problem with that is, since we used to have Mobile being the only one NOT using ethenal, it was more expensive. Sunnoco was cheaper , offered 93 octane and had up to 10% ethanol.

Now both Mobile and Sunnoco are no longer 100% gas. As well as BP, Noco, Getty and tops etc... so anyone looking for pure gas in WNY is kinda out of luck.
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#14 Loly

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Posted 14 March 2010 - 10:55 PM

It's pretty much the same up here in Ontario...it's called "Industry Standard" and again, it's pretty much a continental thing.
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