What gas should i use in my 57 hemi

To reduce the chance of pinging and knocking because of higher cylinder pressures Chrysler recommends 91 octane fuel be used with Hemi engines that are matched to a manual transmission. 87 octane fuel is considered the acceptable minimum for.

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.

What gas should i use in my 57 hemi. 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.

Discussion Starter 1 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 and I.

Run the lowest grade of gas that gives you the most MPGs. 10 people found this helpful. 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. 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. 87 or 89 octane whichever is on tap.

13 people found this helpful. Damned mini insists on 91 or 93 for mo money. 10 people found this helpful.

Run the lowest grade of gas that gives you the most MPGs. 10 people found this helpful. 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. 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.

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. But the computer will adjust to fuel rated at 87.

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. Evan Apostolidis said.

I have a 2017 ram 1500 with a 57 liter hemi does anyone know what type of gas I should be putting in it. Recommended fuel according to owners manual is 89 octane. Ram recommends using 89 octane which is considered mid-grade in all 1500s equipped with the 57-liter Hemi V-8 and 57-liter V-8 eTorque.

However Ram states in its owners manual fuel as low as 87 octane is acceptable but maximum performance and fuel economy is achieved with 89. Armed with that information I have only filled up once since getting my Charger RT 57L Hemi and filled up with 87. The car is running excellent with 87 however I am stuck between believing gas is just a scam even though much experience and many articles state it is and other articles ive read where people claim to get better gas mileage.

The plugs have a replacement interval of 30k miles so if youre around that they have probably just worn out. Just replace them and make sure you use the correct octane fuel for your tune. You could even go one step higher - like use 93 octane for a 89 octane tune just to be sure thats not the problem.

You should not have to add anything to the fuel. Fuel System Cautions CAUTION. Follow these guidelines to maintain your vehicles performance.

The use of leaded gas is prohibited by Federal law. Using leaded gasoline can impair engine performance and damage the emission control system. An out-of-tune engine or certain fuel or ignition.

If you look in your owners manual youll see that the 57 can use 87 but 89 is recommended. Also we have an excellent search feature. Its always good practice to see if something has already been covered.

Ill typically go with what the recommended octane is. MOPAR 5W20 Oil For High Mileage 57 Hemi 5W-20 Valvoline High Mileage Synthetic Motor Oil for 57 Hemi Charger. 5W-20 Quaker State Advanced Durability Motor Oil.

5W-20 Liqui Moly Synthetic Motor Oil 2259 Special Tec AA for Hemi Truck. Best Synthetic Motor Oil for 57 Hemi. Standard 85 octane rated gas mixed into a 10 ethanol blend becomes the 87 octane rated fuel most of us see at the pumps.

Upping the percentage of ethanol to 15 is the 88 octane rated fuel you are referring to. E85 typically doesnt have. The 57 prefers 89 octane fuel the automatic can survive on lower octane but the mileage may suffer maybe slightly If 89 is not available and you have a 6speed then go 9193 for half the tank and 87 or whatever your lower one is for the second half.

The 57 Hemi is one of the most popular gasoline engines in North America and its pretty reliable for the most part however no engine is perfect and the 57 certainly has its flaws. These engines are known to snap exhaust manifold bolts and the MDS may be pretty stubborn at times but the most notorious problem on the 57 Hemi is the ticking noise dubbed the Hemi. The 57 Hemi is open to many types of modifications that can increase its power output.

Now if you have heard that the 57 Hemi upgrades are above your range do not worry. While some improvements will cost you a little extra some cheaper ones will put less strain on your wallet. In my 2006 Durango with a 57 Hemi and 130k miles on it which is the same engine as a 1500 as far as I know.

I used to just use 85 Octane all the time for a couple of years. To reduce the chance of pinging and knocking because of higher cylinder pressures Chrysler recommends 91 octane fuel be used with Hemi engines that are matched to a manual transmission. 87 octane fuel is considered the acceptable minimum for.

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.