04
Feb
Valero was terribledropped to 16-17 mpg. The manufacturer recommends the use of 89 octane for optimum performance.
Fuels with a high amount of ethanol or low octane might not correctly grease the fuel injectors and can lead the way to a ticking or slight tapping noise.
What gas to use in 57 hemi. Guru9BR63 answered 4 years ago. My 2012 1500 sport 57 hemi is a big lemon. I use 89 yes it cost more I also put 89 in my Chrysler 300.
My truck had under 9000 miles on it. It was very hot out side that day I truck wouldnt start. 10 Nov 29 2014.
Since the two currently available gas engine options of Jeep Grand Cherokee have different gas recommendations and my car is a 2014 Grand Cherokee Overland with 57L Hemi I want to make this thread to be specific to that engine. The manufacturer recommends the use of 89 octane for optimum performance. Shell is what Ive found to be the best gas for this engine in this area.
Ive tried Chevron and Valero. Valero was terribledropped to 16-17 mpg. Chevron was ok and resulted in 18mpg worked the best in my old WRX.
Shell results in 18-19 mpg. Octane is just a measure of knock prevention that is required for higher compression high performance engines. The 57 is right on the edge of middle performance and sort of high performance.
So the use of premium over midgrade depends on a lot of factors. May 11 2018. I emailed technical support at Mopar back in 2014 they explained the engine and computer is programmed to run 89 octane as stated preferred in the ownership manual at least it was in 2014.
They further explained the computer programmed best running scenerio was at 89. However its my understanding that the 57 hemi is optimized to run on 89 octane gas. Putting 91 or 93 octane gas in without a tune will not create additional power as the stock PCM does not adjust to having higher octane.
As others have stated the higher octane gas may be cleaner but a good quality gasoline already has cleanersadditives in it. The 2020 F150 with the Coyote engine achieves 1723 MPG and the 2020 Ram 1500 with the 57 MDS gets the same mileage at 1723 despite the heavier steel body larger displacement and slightly more torque. With a 121 compression ratio the smaller 50 Coyote must use premium fuel.
As a new Hemi owner Im asking what grade gas does everyone put into their Hemi. Here in the UK we have two grades 95 octane and 98 octane. Most of the pickup truck of Dodge Ram seems to have this Hemi engine.
With 57 Litre Hemi it gets a little tough to drive with the desired mileage. The average mileage it can go up to is 15 MPG Mileage Per Galon. How To Increase Fuel Mileage 57 Hemi.
Many people dont have the idea that they can also increase fuel mileage on their 57 Hemi. The 57L requires 89 octane w auto trans and 91 octane w manual trans per the owners manual. You can run 87 octane in your car but the computer will pull timing to compensate for the inevitable spark knock that will result from using a poor grade fuel in a performance car.
If we use a low-quality fuel it can cause the 57 Hemi to tick. Fuels with a high amount of ethanol or low octane might not correctly grease the fuel injectors and can lead the way to a ticking or slight tapping noise. Low octane gas can also cause a combustion knock in the high-performance engines.
I have a 2004 RAM with a 57 L Hemi. I heard using E85 can be used in most cars with no problem unless the car is equipped with lots of non-stainless steel parts gas tank etc Can I try it or is there a reason why I absolutely shouldnt. The standard 57 Hemi engine has a power output of 395 horsepower and 410 pound-feet of torque.
It has a compression ratio of 105 to 1. The EPA fuel economy rating is up to 17 MPG city and 23 MPG highway for a combined rating of 19 MPG which isnt all that bad for a V8 pickup truck. Same as the case with the previous one this Pennzoil Ultra Platinum Full Synthetic Motor Oil has more than 6000 five-star ratings which already clearly states that it is an excellent option for vehicles with the 57 Hemi engine.
Unlike most of the options on the market this one is made up of gas and not crude oil. Pennzoil has applied their very own gas-to-liquid PurePlus. The 57 Hemi has been designed with a cylinder deactivation system called MDS Multi-Displacement System to reduce fuel consumption and emissions.
This system turns off the fuel in four cylinders two in each bank and keeps intake and exhaust valves closed by controlling the flow of oil through the lifters of corresponding valves. Dodge RAMs with HEMI engines do not get the best gas mileage. But there are some things you can do to increase your mileage.
You may be able to increase gas mileage by three or four gallons which can add up to a lot of money in the long run. A simple change in driving habits and routine maintenance can make a big. High Performance Aluminum Fuel Rail.
57 Hemi Performance Air Intake Kit. Valve Springs and Seals Hemi 57 Kit. The Hemi 57 in the Ram has proven itself to be a very dependable durable truck even with some of the listed issued above.
With proper care and maintenance the Hemi 57 could outlast the rest of the truck.