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eallen
Dodge Dakota
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3/29/2002
21:56:59
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 Subject: What Octane is everyone running in 4.7?
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I was reading a post on the performance board about higher octane number = more anti-ping / anti-knock resistance.
I have a '01 4.7 QC 4x4 and was getting pinging under med - hard accel. with 87 and then switched to 89 and the pinging has significantly reduced, but is still there.
I was just wondering what octaine everyone is running and if you have any pinging?
Thanks
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handi2
GenIII
3/29/2002
22:58:53
|  RE: What Octane is everyone running in 4.7?
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I have always used Amoco Gold (93 I think) in all my vehicles b/c I usually get better mileage with the higher octane. I also think it is better for the engine. I haven't had any pinging.
http://photos.yahoo.com/handi254310
2002 Quad Cab SLT Plus 4.7 Every Available Option
Access Tonnoue Cover/Bedrug/Airaid Intake/Jet Stage 2
180 Robertshaw/Roadmaster Active Suspension
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greybeard
GenIII
3/29/2002
23:29:15
|  RE: What Octane is everyone running in 4.7?
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I have a 2001 4.7 V8 with a Z-tube and a MagnaFlow straight-through muffler. All I have EVER used is Exxon regular 87 octane WITHOUT any complaints what so ever!!! (Don't use CHEAP gas!!)
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mike
Dodge Dakota
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3/30/2002
00:50:07
| RE: What Octane is everyone running in 4.7?
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I too only use 87 octane. This is regular gas, but that's what the factory says to use. I've heard in these newer cars, and trucks, that using high octane fuel can actually be bad for the engines with the injectors and computers and all. Any comments welcome on this. Probably good to "clean" your engine once every couple months with a tank of premium though.
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QUADMAN
Dodge Dakota
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3/30/2002
00:53:26
| RE: What Octane is everyone running in 4.7?
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Message:
I run amoco 89. No need paying for high test when it runs great on mid-grade!
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MG
Dodge Dakota
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3/30/2002
01:04:14
| RE: What Octane is everyone running in 4.7?
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Message:
Texaco 93 octane and I have no problems at all.
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cjc
Dodge Dakota
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3/30/2002
07:12:56
| RE: What Octane is everyone running in 4.7?
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Message:
87 octane,no problems 02 cc 4.7
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Crazy Bob
GenIII
3/30/2002
08:39:42
| RE: What Octane is everyone running in 4.7?
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Message:
If you use cheap gas,from a off brand station you will sometimes get that,use 89 from that station and it probly will not ping.
If I run the off bran stuff my truck will not perform very good.Here in Ohio I use SUNOCO 87 and works fine.
00 Dakota CC 4x2 SLT Plus
4.7 auto 235hp 355 L/S
Forest Green-Driftwood
00 R/T cat back K&N drop-in
factory flairs added tinted windows
Extang bed cover
Viper alarm&remote starter
02 Grand Cherokee 4X4
4.7 235hp 5spd auto
Steel Blue
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kevster
Dodge Dakota
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3/30/2002
10:32:07
| RE: What Octane is everyone running in 4.7?
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Message:
I have two Daks,both with 4.7 autos. and I use Chevron,or Texaco 87 or 89 Octane fuel. I really dont notice a difference between the two grades. I use to have some pinging in my 2k Dak,but after i installed a 180 T-stat it went away the 02 Dak has no pinging.
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handi2
GenIII
3/30/2002
17:08:38
| RE: What Octane is everyone running in 4.7?
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Message:
I still use Amoco Gold which is their high test. I know I could use a lower octane and save money but I don't drive that much. Only about 100 miles a month. I have used Amoco for at least 30 years so I guess it's a habit. They used to call it "white gas" and allot of people just used a tank full every once in a while. If I had to use a different gas it would be Chevron. The Techron fuel injector cleaner they add is one of the best around.
http://photos.yahoo.com/handi254310
2002 Quad Cab SLT Plus 4.7 Every Available Option
Access Tonnoue Cover/Bedrug/360 Air Intakez/Jet Stage 2
180 Robertshaw/Roadmaster Active Suspension
Street Scene Grill Inserts
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Quad47
Dodge Dakota
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3/30/2002
22:30:11
| RE: What Octane is everyone running in 4.7?
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One thing I don't understand is who can honestly say with a straight face that running 93 in a new vehicle is harmful, I've heard this before and had to walk away from the conversation in disbeliefe. As far as my Dak is concerned she will tolerate 89 sometimes but mostly I have to run 93. We're on the west coast of Florida so it maybe the humidity that makes her so finicky. Anyone else around this area hang on this site, looking for some guys that speek my language?
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McQuad
GenIII
3/30/2002
23:35:54
| RE: What Octane is everyone running in 4.7?
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Message:
I have a new Dak and when I picked it up I was told that 87 works for the 4.7 and putting anything else in is a waste of money. I was also told NOT to use 93 by the dealership, as it was not good for the engine. Dunno why, figured it was way more expensive anyway so didn't bother to ask what the reason was. It does sound rather odd now that I think about it.
Mick
2001 QC 4X2 Sport Pls 4.7 Mopar Snapless Tonneau
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eallen
Dodge Dakota
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3/31/2002
09:03:25
| RE: What Octane is everyone running in 4.7?
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Message:
Thanks for all your replies.
I use ONLY Amoco fuel. I tried a tank of 93 and I do not hear any hint of pinging. I too find it hard to believe that 93 is bad for the engine. I will ask the service dept. next time I bring it in.
Thanks again.
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kennungesser
Gen III
3/31/2002
10:05:09
| RE: What Octane is everyone running in 4.7?
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Message:
After 8,325 miles I have only used Marathon 87 oct. Never had any problems at all. Today , just before I read this , for the first time I but 89 in ,just to give it a good drink. Kindda like its deen drinking Bud light , and I gave it a bottle of Samuel Adams as a treat!! hehe.
Kenneth l Nungesser
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howdy
GenIII
3/31/2002
10:47:58
| RE: What Octane is everyone running in 4.7?
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Message:
87 octane from wal-mart station. no problems
Dodge Dakota QC 4.7 4x4 Silver
Rhino Liner,air freshner,Westin Platinum Series Black Step Bars
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handi2
GenIII
3/31/2002
11:30:21
| RE: What Octane is everyone running in 4.7?
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Message:
Quad47,
I'm in Pensacola, FL
Northwest Florida
I haven't tried anything but Amoco Gold but the next time I fill up I'll try the lower octane and see what happens.
http://photos.yahoo.com/handi254310
2002 Quad Cab SLT Plus 4.7 Every Available Option
Access Tonnoue Cover/Bedrug/360 Air Intakez/Jet Stage 2
180 Robertshaw/Roadmaster Active Suspension
Street Scene Grill Inserts
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BlackDak02
*GenIII*
3/31/2002
12:06:53
| RE: What Octane is everyone running in 4.7?
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Message:
Sunoco/Mobil 89, NJ, no probs.
2002 Black CC SLT 4x4
4.7L 45RFE 3.55 LSRD
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Quad47
Dodge Dakota
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3/31/2002
22:47:42
| RE: What Octane is everyone running in 4.7?
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Message:
Thanks handi2 for the reply. I live about 60 miles north of Tampa just outside of Brooksville. Pensacola is about a 6 hour drive from here.
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mike
Dodge Dakota
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3/31/2002
23:08:01
| RE: What Octane is everyone running in 4.7?
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Message:
Had my dak for about a year now, and wheather I use 87 or 93 octane, I have no pinging in the engine. I've tried shifting into higher gears at very low rpm to test teh pinging, and can't succeed. I have noticed a difference in the cheap no-name gass though. I'll stick to my esso 87 Octane. For those guys with the pinging, the only thing I can suggest is try another gas station for a couple of tanks. Using high octane in the engine as far as I can see could only be bad for the mixture. May be burning too clean thus too lean. Could be bad for the injectors for some reason. The computer may also not agree with it. Just throwing a few ideas out there for ya.
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asamek
Dodge Dakota
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4/01/2002
16:52:35
| RE: What Octane is everyone running in 4.7?
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Message:
2001 QC 4.7 L - I run 87 - after 17,000 miles, not one ping ever. I did run a couple tanks of mid grade (89), and didn't notice a performance difference - but it did get me another mpg on the hwy...
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YJ
Dodge Dakota
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4/01/2002
19:30:02
| RE: What Octane is everyone running in 4.7?
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Message:
92 octane, always, in my dak and my wrangler. Better for your beast. Oh, and no water...I mean, ARCO.
;)
YJ
Black 2K QC 4x4 4.7 3.92 KVT910DVD
Black 91 YJ 4LHO Borla | Lifted
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ed
Dodge Dakota
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4/04/2002
04:12:23
| RE: What Octane is everyone running in 4.7?
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Message:
01 QC 4x4 4.7L
I've run all types and get some pinging with 87 and none with 89 or 92. I noticed due to the different combustion rates of each type that 89 seems to be the best as far as performance and mpg. I track my mpg and average 17 and between 350-430miles on each tank(24 Gal) with 89.
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nmdcommguy
Dodge Dakota
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4/04/2002
11:59:31
| RE: What Octane is everyone running in 4.7?
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Message:
87 with no pining, even pulling a 24' boat.
2001 4.7 QC 2WD SLT+
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12GA Dak
GenIII
4/04/2002
12:11:42
| RE: What Octane is everyone running in 4.7?
IP: Logged
Message:
87 Octane Exxon/Mobil with no pinging. 17.5 mpg highway; 14.5 mpg city.
2002 Black QC Sport 4x4, 4.7L, 5-spd, 3.92 LSD
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Crux
Dodge Dakota
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4/11/2002
18:11:00
| RE: What Octane is everyone running in 4.7?
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Message:
nothing but Chevron '93 since day one. No problems.
~Crux
2001 Black Dak, 4.7 auto QC, Upper work, Dual 3chamber flows, Custom intake, 75-150 shot NoS, 2 baby seats, 13.37 1/4, Life is good.
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dakota pride
Dodge Dakota
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5/28/2003
13:03:47
| RE: What Octane is everyone running in 4.7?
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Message:
4.7s are designed for 87 but what most people hear
is the cranckcase ventalation valve's ball rattling if you replace it then it will stop all together but shop won't tell you that.
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00287RC
Dodge Dakota
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5/28/2003
13:20:06
| RE: What Octane is everyone running in 4.7?
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Message:
93 octane, but I also have the Leach flash
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Blckdak
GenIII
5/29/2003
01:44:27
| RE: What Octane is everyone running in 4.7?
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Message:
Chevron 87 octane and every other oil change a bottle of Regane, neber used any other gas. Pinging can be caused by carbon buildup and the compression being increased and detonating the A/F ratio sooner than its supposed to. Higher octane gas is a slower burning gas. Using a slower burning gas in an engine that isn't designed for it is kinda a waste, its not all combusting. I also do a throttle boddy cleaning and combustion chamber cleaner as well, 2 products you can buy at the Dodge Dealer.
Erin
2000 CC 4x4 Sport
Magnaflow Exhaust, Z-Tube, Runnin AMSOIL
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Andrew
Dodge Dakota
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5/29/2003
01:46:31
| RE: What Octane is everyone running in 4.7?
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Meijer or Wesco 89 usually, sometimes 93, but I don't need it, never pinged before or after the cams, intake and tb.
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FLDak
Dodge Dakota
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5/29/2003
11:59:43
| RE: What Octane is everyone running in 4.7?
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Quad47, handi2,
I'm just north of Pensacola and have always used regular 87 octane at various gas stations. No pinging, great mpg, for a V8 (02 CC+ SLT 4.7). Owners manual specifies 87 octane??
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FLDak
Dodge Dakota
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5/29/2003
12:08:35
| RE: What Octane is everyone running in 4.7?
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Almost forgot, I have over 31,000 miles on my 02' Dak.
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