Question: Does Hemi Need Premium Gas?

Can you put regular gas in a 5.7 Hemi?

The 5.7L requires 89 octane w/ auto trans and 91 octane w/ manual trans per the owner’s 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..

Can you mix 87 and 89 gas?

Yes. You will not harm your car by mixing different octane grades of the same gasoline providing your car’s engine is designed to run on less than 89 octane fuel and you are not using E85 in a non-E85 compatible engine. … Most gas stations that sell 87, 89 and 91 octane gas use what is called a mixer pump.

What happens if you put 93 instead of 87?

If you usually fill your tank up with 87-octane gasoline and you accidentally put in a higher octane blend (say, 91, 92, or 93), don’t worry. … You may feel a difference in the way the vehicle runs and may notice an improvement in gas mileage, but that’s about all that will happen.

What happens if you accidentally put regular gas instead of premium?

Using regular gas in an engine that requires premium could void your warranty. That is most likely to happen if using regular causes severe engine knock or pinging (premature ignition of the fuel, also known as detonation) that damages the pistons or other engine parts.

Is the 5.7 L Hemi a good engine?

In general, the third-generation Hemi V8s don’t have any significant design flaws, and the 5.7L version is a solid reliable engine. Many owners are faced with a strange ticking sound in the 5.7L Hemi engine coming from the valvetrain, which, however, does not affect anything.

Can you use 93 octane in a 5.7 Hemi?

ZJ Grand Cherokee Forum > 5.7 liter Hemi-Why no 93 Octane ? No it will not hurt the engine to go higher in octane. … 93 won’t hurt but there are few legitimate reasons to use it if your engine doesn’t require it. Higher octane by itself provides little or no performance benefit for an engine that does not require it.

Can I run 91 octane in my 5.7 Hemi?

Premium Member The manual recommends 89, and even goes so far to say that 91 or above could hinder performance and is not recommended.

What is the difference between the 5.7 Hemi and 6.4 Hemi?

The 5.7 Hemi engine has a stroke length of 90.88 mm (3.58 inches), whereas the 6.4 Hemi engine has that of 94.6mm (3.72 inches). We all know that the longer the stroke, the better. The longer stroke allows the 6.4 to deliver more power than the 5.7 Hemi.

What happens if you mix regular gas with premium?

It probably won’t hurt anything. If your car requires regular gas, the blend will have plenty of octane and detergent and may even run a little better or get a bit better mileage. If the car requires premium, the blend won’t have as much octane as it should. … Older cars may start pinging.

How many MPG does a 5.7 Hemi get?

Find and Compare Cars2020 Ram 1500 4WDPersonalize Find a car8 cyl, 5.7 L, Automatic 8-spd CompareFuel EconomyEPA MPGMidgrade Gasoline 17 combined city/highway MPG 15 city 21 highway 5.9 gals/100 miles10 more rows

Will 93 octane increase HP?

Premium gas must be, by law, at or above 91 percent, although you do also see 93 percent octane ultra-premium at many stations. … Octane does not offer any better fuel mileage, increase engine horsepower, or make the engine start quicker. Higher octane only reduces the likelihood of engine knock or ping.

What kind of gas is 89?

Gas stations in the United States generally offer three octane grades: regular (usually 87 octane), mid-grade (usually 89 octane), and premium (usually 91 or 93).

How much horsepower does a 5.7 L v8 Hemi have?

395 horsepower5.7-liter HEMI® V8 – This V8 engine offers the legendary power and capability you’ve come to expect from the iconic HEMI® name. It pushes out an incredible 395 horsepower and a whopping 410 lb-ft of torque.

What kind of gas does a 5.7 Hemi take?

Ram recommends using either 87 or 89 octane in new Ram 1500 models equipped with the 3.6-liter Pentastar V6 engine or the 5.7-liter HEMI V8 engine, but do you know what that means?

Can I run 87 octane in my Hemi?

All of the new vehicles “CAN” run 87 octane fuel, but it’s not recommended and used repeatedly or long term will eventually result in engine damage. It should not spark-knock, as the ECU (computer) should detect it and detune the ignition accordingly but with commensurate sacrifice in both performance and MPG.

Does Porsche require premium gas?

What Kind of Gas Does Porsche Use? Because of their high-performance, high-compression engines and use of turbochargers, every Porsche model requires premium gasoline. If you use lower octane gasoline in your Porsche, it’s possible that the fuel could ignite before intended, possibly causing damage.

Does 93 octane burn cleaner?

Higher Octane Doesn’t Mean Better Performance Using a higher octane gasoline will not help clean your engine. … This means that your engine will be cleaned the same by 87 octane fuel as it will by 93 octane fuel, so don’t feel that it’s necessary to treat your car to a higher grade.