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Towing 4th Gen Dodge Ram Towing Questions


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  #1  
Old 02-27-2014, 03:00 PM
mfifield01 mfifield01 is offline
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Default Towing Octane

I know there's a big debate between 87 and 89 octane for daily use, but what are you using to tow on the 5.7l? Up until last week, I've only used 89. I decided to run 87 through it once, but don't plan on doing any towing. I would guess that 89 is probably better due to potential knocking.
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Old 02-27-2014, 03:12 PM
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The hemi's computer can pull a lot of timing if needed. Stock, if it doesn't knock/ping your ok with 87 octane. I'm a greedy bastid, so I run a custom dyno tune for 93 octane. It's worth only 15 rwhp or so over 87, maybe 20. Most people wouldn't know the difference and stock, you will get almost no gain.
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Old 02-27-2014, 03:18 PM
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The OP is not talking about getting extra power from running the higher octane, he's talking about reducing the pinging.


OP, yes when you plan on towing a decent amount of weight it's definitely not a bad idea to run at least 89 octane. With the extra load on the engine it will definitely help reduce the pre-detonation and will in turn keep your power up where it should be. Your engine will thank you.
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Old 02-27-2014, 03:39 PM
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if you ever hear a ping while pulling a steeper hill or on Initial take off, you need to up your octane rating
personally i use mid grade gasoline, unless i am at a isolated gas station where prices are way out of line when compared to every where else
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Old 02-27-2014, 03:49 PM
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I'm basically curious as to what octane other's use. I tow my boat during the summer months, but only used 89 last summer.
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Old 02-27-2014, 06:00 PM
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I do not have my manual in front of me, but as I recall it implies 89 is the preferred octane but it is ok to use 87. But to your question, I always use 89 octane when towing. I guess it would also depend on how heavy you are towing.

Last edited by Hermes1; 02-27-2014 at 06:03 PM. Reason: Content
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Old 02-27-2014, 09:12 PM
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Haven't towed with my 14 yet but on my 2011 I ran 87 octane all the time. I was so use to using the 87 that when it came time to tow I didn't even give it a second thought, I pull a box trailer with a 4000 lb car in it (total around 7500lbs) and the truck never complained or pinged.

Just my 2 cents
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Old 02-28-2014, 11:08 AM
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89 Octane and real gas. The Hemi doesn't like Corn-Juice. I run 87 for daily driving. When it comes to towing it's 89 non-eth.
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Old 02-28-2014, 12:11 PM
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Quote:
Originally Posted by Deathrend View Post
89 Octane and real gas. The Hemi doesn't like Corn-Juice. I run 87 for daily driving. When it comes to towing it's 89 non-eth.
Would be nice to have non-ethanol gas, but you can't find it in Central Texas. I use to put it in the boat, but I can't find any stations now.
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Old 02-28-2014, 12:23 PM
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I tow up some high mountains and have never used anything but 87.
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