DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Help Zone - Dodge Ram Problems, Complaints, & Solutions - Maintenance & Re > Dodge Ram MPG Zone


Notices

Dodge Ram MPG Zone Discuss your MPG woes and helpful hints here!


Latest Vendor News
AutoAnything
Addictive Desert Designs!
Bayou Goat Mounts

Reply
 
Thread Tools
  #1  
Old 06-07-2013, 08:26 PM
Ezekielguy86 Ezekielguy86 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2013
Age: 28
Posts: 320
Gender: Male
Vehicle: 2012 Dodge Ram 1500 5.7 HEMI
Trim Level: ST Express
Color: Bright White
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:71
Ezekielguy86 will become famous soon enough
Default Fuel Grade Questions

Ok so when I first bought the truck I put Spinx 87 in it and got around 14.5 mpg. I then decided to try out 93 and well got no change. We recent got a ton of new QT stations in my area so I thought I would give them a go. I went with 87 again and got the same numbers but with their 93 I get 15.5 range pretty regular. Now this I was excited about and have keep doing it since.

Now my main question is that this is E10 fuel and thats how all the stations in my area are other than one without having to go out of the way. Would it be worth my while to pay the extra for 93 no ethanol from a no brand station?

I have no issues with what Im using now but if something is better than Im all for that. Thanks for the help.
__________________
Diablo Sport Intune HemiFever 93, S&B Intake, 14" Jones Full Boar, Mag Y Pipe, 180 T-Stat, Billet Catch Can, Pioneer 5500BHS, Fox Box W/ Type R, Air Lift 1000
Reply With Quote
Sponsored links
  #2  
Old 06-08-2013, 06:51 AM
Excoastie's Avatar
Excoastie Excoastie is offline
Dodge Ram Forum Senior Member!

 
Join Date: Aug 2008
Location: Bossier City, LA
Age: 42
Posts: 3,445
Gender: Male
Vehicle: 2014 VW Jetta GLI
Color: Metalic Black
Rep Power: 10
Rep:1358
Excoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud ofExcoastie has much to be proud of
Default

I doubt that the 93 will make much of a difference in the long run, at least without a tuner installed.

Our trucks are designed to run best on 89 octane, but will run just fine on 87 (I've been using 87 90% of the time for 3 yrs now with no issues). I'm sure that someone will correct me, but with the 93, you need either a higher compression engine, or a different air/ fuel ratio to get the most burn out of it. I personally wouldn't spend the extra money.

As for the 10% ethanol, there probably isn't much that you can do about that. I also believe that with a few rare exceptions ALL engines will burn it with no long lasting ill effects. I think it's become pretty much the standard in most of the major brand gas stations.

good luck, and hope I actually helped and didn't provide too much wrong info


Exco
__________________
Oracle Interior LEDs, EGR Vent Visors, Ram eyes, Husky Liner Splash Guards, R/T Badges Front and Rear, LED Light Bar, Stubby Radio Antenna, Custom Shift Knob, ARE LS II bed cover, Bed Rug, Flowmaster 50 series HD, SilverStar Ultra low beams, K&N drop in filter, MOPAR sill guards, Smitty Built nerf bars, 24% tint on the front.
Bill
Reply With Quote
  #3  
Old 06-08-2013, 12:05 PM
Ezekielguy86 Ezekielguy86 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2013
Age: 28
Posts: 320
Gender: Male
Vehicle: 2012 Dodge Ram 1500 5.7 HEMI
Trim Level: ST Express
Color: Bright White
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:71
Ezekielguy86 will become famous soon enough
Default

I do have a tuner
__________________
Diablo Sport Intune HemiFever 93, S&B Intake, 14" Jones Full Boar, Mag Y Pipe, 180 T-Stat, Billet Catch Can, Pioneer 5500BHS, Fox Box W/ Type R, Air Lift 1000
Reply With Quote
  #4  
Old 07-24-2013, 12:14 PM
Warthog Fixer's Avatar
Warthog Fixer Warthog Fixer is offline
Dodge Ram Forum Junior Member
 
Join Date: Jul 2013
Location: Roy, UT
Posts: 49
Gender: Male
Vehicle: 2011 Dodge Ram 1500
Trim Level: Big Horn
Color: White
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:20
Warthog Fixer is on a distinguished road
Default

Octane serves one purpose, to prevent pinging/knocking actually called "pre-ignition". Higher compression motors, to include supercharged (Turbo'd/Blown), require higher octane to prevent pre-ignition. This isn't to say that there aren't other issues that can affect octane requirements. Elevation for example, higher elevation reduces required octane levels. I personally run 85 octane, but I live/drive at 4500 feet elevation. Computer controlled vehicles skew things a bit as they can control pre-ignition by retarding ignition timing to a certain extent.

So, run the octane the manufacturer recommends. If you've modded your motor to higher compression values, through a variety of means (pistons, heads, supercharging, etc...), use higher octane as required to prevent pre-ignition.

The moral of the story is that higher octane does not translate into higher powered gasoline.
Reply With Quote
  #5  
Old 07-24-2013, 01:30 PM
AcadianRam's Avatar
AcadianRam AcadianRam is offline
Dodge Ram Forum Senior Member!
 
Join Date: May 2012
Location: Digby
Age: 60
Posts: 207
Gender: Male
Vehicle: 2012 Dodge Ram
Trim Level: Sport
Color: Black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:53
AcadianRam will become famous soon enough
Default

It has been my experience that using the highest octane I can find I can go a little farther so that pays for the bigger cost.

I am soon to be 60 years old and using higher octane in a motor is much better for it, but over time it's better to use the higher stuff. In my Hemi I cannot see myself putting 87 , would you put 87 in a Lamborgini even if the maker said it would work.

I'm probably wrong but I just can't bring myself to put 87 in a Hemi
Reply With Quote
  #6  
Old 07-24-2013, 02:02 PM
dodge man's Avatar
dodge man dodge man is online now
Dodge Ram Forum Senior Member!
 
Join Date: Apr 2010
Location: Macomb, Illinois
Age: 52
Posts: 713
Gender: Male
Vehicle: 2004 Quad Cab diesel
Trim Level: SLT
Color: Silver
Engine: 2005-20?? 359ci (5.9L) Cummins ISB 610 24-Valve Diesel I6 325hp 610 lb/ft
Rep Power: 5
Rep:217
dodge man has a spectacular aura aboutdodge man has a spectacular aura aboutdodge man has a spectacular aura about
Default

Running anything more than 89 octane in a stock late model hemi isn't better for it. If you have a tuner and have advanced the timing, higher octane will help.
__________________
2004 3/4 ton Quad Cab, 24 valve 5.9 Cummins
Reply With Quote
  #7  
Old 07-24-2013, 02:12 PM
Warthog Fixer's Avatar
Warthog Fixer Warthog Fixer is offline
Dodge Ram Forum Junior Member
 
Join Date: Jul 2013
Location: Roy, UT
Posts: 49
Gender: Male
Vehicle: 2011 Dodge Ram 1500
Trim Level: Big Horn
Color: White
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:20
Warthog Fixer is on a distinguished road
Default


Quote:
Originally Posted by AcadianRam View Post
... would you put 87 in a Lamborgini even if the maker said it would work.
If I didn't have any pre-ignition problems, in a heart beat!

Quote:
Originally Posted by dodge man View Post
you have a tuner and have advanced the timing, higher octane will help.
Potentially yes, but you're changing the the fuel/spark curves. I still couldn't see 93 octane beeing NEEDED, even with a tuner.

Just my .02
Reply With Quote
  #8  
Old 07-24-2013, 02:25 PM
dodge man's Avatar
dodge man dodge man is online now
Dodge Ram Forum Senior Member!
 
Join Date: Apr 2010
Location: Macomb, Illinois
Age: 52
Posts: 713
Gender: Male
Vehicle: 2004 Quad Cab diesel
Trim Level: SLT
Color: Silver
Engine: 2005-20?? 359ci (5.9L) Cummins ISB 610 24-Valve Diesel I6 325hp 610 lb/ft
Rep Power: 5
Rep:217
dodge man has a spectacular aura aboutdodge man has a spectacular aura aboutdodge man has a spectacular aura about
Default

I have a Challenger that I have a Diablo Predator on it. I had a guy custom tune it on a dyno where they can see the air fuel ratio and tune the car to it. A custom tune doesn't really mean much, he just bumped the timing up a couple of degrees from a stock tune and leaned it out a little bit.

With a Diablo you can record data to a laptop and look back and see different parameters. Two of them that you can log are short term and long term knock. I was getting some short term knock with my tune running 91 octane fuel. I'm sure if I was running 93 octane I would have gotten less or none. I was only getting the knock at the high rpms right before the shift into 4 gear. Short term knock isn't all that bad, I think mine was only pulling about 3 degrees of timing at the most. The problem is if you get a lot of knock, it dumps that into the long term knock which means its pulling timing all the time.

So to answer your question, depending the the tune and the tuner, 93 octane might or might not be needed.
__________________
2004 3/4 ton Quad Cab, 24 valve 5.9 Cummins
Reply With Quote
  #9  
Old 07-24-2013, 02:43 PM
Hermes1's Avatar
Hermes1 Hermes1 is offline
Dodge Ram Forum Member

 
Join Date: Jan 2013
Location: Phoenix, AZ
Age: 60
Posts: 2,325
Gender: Male
Vehicle: 2012 Ram 1500 4WD Quad Cab
Trim Level: Sport
Color: Flame Red
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 8
Rep:2538
Hermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond reputeHermes1 has a reputation beyond repute
Default

The prevailing wisdom is using higher octane than required by the manufacturer is a waste of money. An exception might be with a tuner installed, but not having a tuner I do not know. I understand that using higher octane than required, while a waste of money, would not hurt anything, but I seem to recall reading on this forum under one of the many octane threads, using higher octane can have an ill effect. As mentioned our trucks manual recommend 89 but indicate 87 is ok to use. I have always run the highest octane required or suggested by the manufacturer, so I have run nothing but 89 in my truck.
__________________
Regards, Bruce
Sure you can take my truck, the door is un-locked and the keys are under my Akita.

Last edited by Hermes1; 07-24-2013 at 02:44 PM. Reason: Content
Reply With Quote
  #10  
Old 07-24-2013, 03:15 PM
AcadianRam's Avatar
AcadianRam AcadianRam is offline
Dodge Ram Forum Senior Member!
 
Join Date: May 2012
Location: Digby
Age: 60
Posts: 207
Gender: Male
Vehicle: 2012 Dodge Ram
Trim Level: Sport
Color: Black
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:53
AcadianRam will become famous soon enough
Default

It's ok to use 87 because the computor adjust for knock and ping. That's like saying my heart skips a few beets if I drink orange juice but my pace maker adjust for that. Or I can drink water and I don't skip any. I'll take the water

But like I have said before I'm used to older engines and these new ones run probably all different
Reply With Quote
Reply

Bookmarks

Thread Tools

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

Forum Jump


Advertisement






All times are GMT -4. The time now is 02:36 PM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum