I have a 2014 2500 HD Ram with the 5.7 Hemi.. and have been putting reg gas in it. With the camping season upon us and towing every other weekend, should I be putting a higher octane in it? Will this help with performance? This is my first season towing- so I am very new to this.Thanks.

Your owners manual should tell you what type of fuel to use. I know that Ford tells me that I am to use 86 octane regular in my V-10. I have never had any problems even in high altitudes and towing. JMO

I always recommend and follow the manufacturer's recommendations. You can get lots of 'opinions' here on the Forum...but, you can get the facts from the guys why designed and built your truck in you owners' manual.

Using higher octane can actually cause issues because it burns colder then regular octane. Follow the vehicle manual. If you get "ping" or "knock" with regular there is a problem with the injection system since it should correct the timing for the higher load.

Ram recommends 89 for the 5.7l. In no way shape or form would 91-93 octane hurt your engine and may give a very slight increase to power and economy. Is it worth the extra money, probably not.

The only thing higher octane fuel will hurt is your wallet as you throw your money away. If your owners manual doesn't require it, you don't need it, and it's a waste of money.

High Octane Gas? | Good Sam Community

N-Trouble
Explorer
Jun 23, 2015
Elevation will also play a factor. At higher elevations you don't need to run as high octane as you might at lower elevations.
noteven
Explorer III
Jun 23, 2015
You want to use the cheapest what passes for fuel you can in your $10,000 engine.

Claims from oil companies that grades of gasoline make any difference are hokum. Remember these are the people that prevented the 200 mpg carburettor from ever reaching the market!
BenK
Explorer
Jun 23, 2015
You can get by with 87 octane...but...with towing heavy...as you approach the
limits of your TV...the computer will phase back performance to save it self

Higher octane will allow the computer to keep a higher level of power, but NOT
make more power
TomG2
Explorer
Jun 23, 2015
The biggest gain is if you can find Ethanol free gasoline. It may not add much power but it helps fuel mileage a lot.
gcloss
Explorer
Jun 23, 2015
The owners manual for my 2012 Ram 2500 with 5.7 Hemi calls for 89 octane, with a note that 87 octane can be used.

When towing I always use the 89 octane because there is a notable increase in performance from 87 to 89 octane.
jfkmk
Explorer
Jun 23, 2015
The only thing higher octane fuel will hurt is your wallet as you throw your money away. If your owners manual doesn't require it, you don't need it, and it's a waste of money.
Samsonsworld
Explorer
Jun 23, 2015
Ram recommends 89 for the 5.7l. In no way shape or form would 91-93 octane hurt your engine and may give a very slight increase to power and economy. Is it worth the extra money, probably not.
spadoctor
Explorer
Jun 23, 2015
Using higher octane can actually cause issues because it burns colder then regular octane. Follow the vehicle manual. If you get "ping" or "knock" with regular there is a problem with the injection system since it should correct the timing for the higher load.
downtheroad
Explorer
Jun 23, 2015
I always recommend and follow the manufacturer's recommendations.

You can get lots of 'opinions' here on the Forum...but, you can get the facts from the guys why designed and built your truck in you owners' manual.
BTPO1
Explorer
Jun 23, 2015
Your owners manual should tell you what type of fuel to use. I know that Ford tells me that I am to use 86 octane regular in my V-10. I have never had any problems even in high altitudes and towing. JMO

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