doctarie wrote: Just bought 2011 ram big horn with the 5.7 hemi. Was just wondering what you guys are running in yours and why . What gets better mileage , fuel brand , 87 or 89 or 91 .
Thanks Bob
I'm running 87 in my Ram 2500, which is mid-grade at the elevation I live at. The manual says 87 is acceptable, while 89 is recommended.
I'm heading up to Yellowstone in a couple weeks and plan to experiment with running premium. In theory, an engine with variable valve timing like the Hemi can adjust to higher octane and produce more power and better throttle response. I'll see if there is a noticeable difference.
Your going the wrong way with octane. The higher up you go the less octane you need. That is why places like Denver has less octane in their gasoline.
I am aware of that. I already live at 5000 feet and will not be going up any appreciable altitude, in fact much of the drive will be at the same or lower altitudes. Switching to a higher octane will be for comparing performance only.
doctarie wrote: Just bought 2011 ram big horn with the 5.7 hemi. Was just wondering what you guys are running in yours and why . What gets better mileage , fuel brand , 87 or 89 or 91 .
Thanks Bob
I'm running 87 in my Ram 2500, which is mid-grade at the elevation I live at. The manual says 87 is acceptable, while 89 is recommended.
I'm heading up to Yellowstone in a couple weeks and plan to experiment with running premium. In theory, an engine with variable valve timing like the Hemi can adjust to higher octane and produce more power and better throttle response. I'll see if there is a noticeable difference.
Your going the wrong way with octane. The higher up you go the less octane you need. That is why places like Denver has less octane in their gasoline.
I am aware of that. I already live at 5000 feet and will not be going up any appreciable altitude, in fact much of the drive will be at the same or lower altitudes. Switching to a higher octane will be for comparing performance only.
Hmmmm, alright, but 3,000 to 5,000 higher up in Yellowstone seems appreciable to me.
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"Life is not tried ~ it is merely survived ~ if you're standing
outside the fire"
doctarie wrote: Just bought 2011 ram big horn with the 5.7 hemi. Was just wondering what you guys are running in yours and why . What gets better mileage , fuel brand , 87 or 89 or 91 .
Thanks Bob
I'm running 87 in my Ram 2500, which is mid-grade at the elevation I live at. The manual says 87 is acceptable, while 89 is recommended.
I'm heading up to Yellowstone in a couple weeks and plan to experiment with running premium. In theory, an engine with variable valve timing like the Hemi can adjust to higher octane and produce more power and better throttle response. I'll see if there is a noticeable difference.
Your going the wrong way with octane. The higher up you go the less octane you need. That is why places like Denver has less octane in their gasoline.
I am aware of that. I already live at 5000 feet and will not be going up any appreciable altitude, in fact much of the drive will be at the same or lower altitudes. Switching to a higher octane will be for comparing performance only.
Hmmmm, alright, but 3,000 to 5,000 higher up in Yellowstone seems appreciable to me.
Not really, the north entrance is at 5,224 ft. above sea level, and Mammoth - where I'll be staying - is 6299.
There is no place in Yellowstone that the public can drive that is higher than 8800, and that is at Dunraven pass, which will still be closed when I head up there.
archie780 wrote: I run what it says it's tuned for and that's 89. Anything more won't do you any good unless you reprogram the truck. Not particular about brand but I try and stay away from the ethanol blends if possible. That stuff will kill your mileage.
all true. Run what it calls for. if it calls for 93 and you run 87, you might not notice a difference but over time you could be slowly hurting your engine.
Thanks Guys was just wondering if the difference was very noticable in proformance and in mpg .Always looking to gain in both and knew this would be a great pool of info. Let me know your thoughts after your trip to yellowstone !
* This post was
edited 04/19/12 07:08am by doctarie *
I'll try to remember to post my impressions. What kind of mileage are you getting with your Ram? Is it the 1500 or the 2500?
Around town I'm only averaging about 11.5 mpg, but I'm getting better than I expected on the highway - best has been around 18 mpg. The truck only had 3000 miles on it when I bought it and I've put about 500 miles on it since. I'm looking forward to stretching its legs.
doctarie wrote: Just bought 2011 ram big horn with the 5.7 hemi. Was just wondering what you guys are running in yours and why . What gets better mileage , fuel brand , 87 or 89 or 91 .
Thanks Bob
I'm running 87 in my Ram 2500, which is mid-grade at the elevation I live at. The manual says 87 is acceptable, while 89 is recommended.
I'm heading up to Yellowstone in a couple weeks and plan to experiment with running premium. In theory, an engine with variable valve timing like the Hemi can adjust to higher octane and produce more power and better throttle response. I'll see if there is a noticeable difference.
Your going the wrong way with octane. The higher up you go the less octane you need. That is why places like Denver has less octane in their gasoline.
I am aware of that. I already live at 5000 feet and will not be going up any appreciable altitude, in fact much of the drive will be at the same or lower altitudes. Switching to a higher octane will be for comparing performance only.
Hmmmm, alright, but 3,000 to 5,000 higher up in Yellowstone seems appreciable to me.
Not really, the north entrance is at 5,224 ft. above sea level, and Mammoth - where I'll be staying - is 6299.
There is no place in Yellowstone that the public can drive that is higher than 8800, and that is at Dunraven pass, which will still be closed when I head up there.
Off topic but I LOVE Mammoth...one of my favorite places in the country. Was there over the 4th of July last year, can't wait to get back!
BManning baking in Phoenix
2008 Ford Super Duty F250 XLT, 4x4, crew cab, 6.75' bed
5.4L V8 300hp/365ft-lb, 5sp Torqshift, 4.30 AAM gears
9400lb GVW 11200lb tow
2007 Volvo XC90 AWD V8
4.4L 311hp/325ft-lb, 6sp Aisin, loaded
6100lb GVW 5000lb tow
Eurocamper wrote: I'll try to remember to post my impressions. What kind of mileage are you getting with your Ram? Is it the 1500 or the 2500?
Around town I'm only averaging about 11.5 mpg, but I'm getting better than I expected on the highway - best has been around 18 mpg. The truck only had 3000 miles on it when I bought it and I've put about 500 miles on it since. I'm looking forward to stretching its legs.
I just bought mine its a 1500 2011 with 21k on it so don,t know yet just seeing what to expect
Just got 19mpg with out the camper on a trip through southern ohio. Was impressed with that as it was all hilly small roads. Also thought I had found fuel without ethenol but found out Ohio does not require it posted on the pump sp not sure now. They at least should have to tell you if its added.
I bought my 2003 Ram with the HEMI when it had 25K on it. It now has 113K on it. It has never seen a tank over 87 octane and I have never had any issues with carbon build up or anything else fuel related. I do run the Lucas Fuel Injector cleaner from time to time but that is it.
Our 2011 Buick Lacrosse manual says to run 89 octane....we have never run anything but 87 octane, and there is no performance loss...mileage is right where it is supposed to be, and no knocking or any issues.
It isn't worth the extra $2-4 per tank in my opinion.
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