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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #11  
Old 01-10-2013, 08:08 PM
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ran 87 for 3 years then 89 and eventually 91 when i got my SC3815. now 91 period due to custom tuning. This year will be 10 years for my 3G. Mostly stick to Sams Club since it in my route.
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  #12  
Old 01-10-2013, 08:20 PM
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Shell 89. 89 is what Ram recommends, they know more about it than I do.
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  #13  
Old 01-10-2013, 11:28 PM
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I run no ethanol premium (93 octane). I have no engine mods on my 3rd Gen but it seems to run better. I also see just a fuzz of an increase in mpgs. But the main reason is the ethanol garbage! That stuff is no good!
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Old 01-10-2013, 11:29 PM
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The manual reccomends 89 so thats what I run. I am sure 87 is fine but why not give your baby what she wants?
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Old 01-11-2013, 06:57 AM
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What have you done to that to get those times
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Old 01-11-2013, 09:23 AM
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Ok so what's the final answer 89 all the time and maybe some 93 once a month? I ran 93 octane tune with my hypertech ( waste of money) and also got slightly better mpg but is it worth the extra money it costs?
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Old 01-11-2013, 09:31 AM
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i dont put anything less than super, in anything! sled, bike, weed wacker, truck, or anything mechanical that i value.
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Old 01-11-2013, 09:56 AM
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Quote:
The manual says 87 acceptable, 89 recommended.
Must be a different manual than mine. My 2010 says 87 for all engines except 5.7.
For 5.7 it says 89

All engines (except 5.7L engines) are designed to meet all emissions regulations and provide excellent fuel economy and performance when using high quality unleaded “regular” gasoline having an octane rating of 87. The use of premium gasoline is not recommended, as it will not provide any benefit over regular gasoline in these engines.

5.7L Engine
The manufacturer recommends the use of 89 octane for optimum performance.
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Old 01-11-2013, 10:28 AM
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what performance mods should i us for 2012 ram
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  #20  
Old 01-11-2013, 10:55 AM
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Quote:
what performance mods should i us for 2012 ram
easy..all of them..ha
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