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Posted: 8/31/2015 10:18:44 PM EDT
I've filled up with regular and haven't noticed anything, the manual says 87 is okay but 89 octane is preferred. Am I going to blow up my new truck?
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Posted: 8/31/2015 10:25:07 PM EDT
[#1]
No, the computer will "listen" for engine knock and retard special education the timing, resulting in less power and lower gas mileage.
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Posted: 8/31/2015 10:26:36 PM EDT
[#2]
Quote HistoryQuoted: No, the computer will "listen" for engine knock and retard special education the timing, resulting in less power and lower gas mileage. Sounds like I should be using midgrade  |
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Posted: 8/31/2015 10:30:06 PM EDT
[#3]
Quote HistoryQuoted:
Sounds like I should be using midgrade
Quote HistoryQuoted:
Quoted:
No, the computer will "listen" for engine knock and retard special education the timing, resulting in less power and lower gas mileage. Sounds like I should be using midgrade
Might as well use 87. Who knows how long the other stuff has been sitting in their tank. I've always assumed it has degraded and possibly soaked up extra moisture. |
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Posted: 8/31/2015 10:33:38 PM EDT
[#4]
Quote HistoryQuoted:
No, the computer will "listen" for engine knock and retard special education the timing, resulting in less power and lower gas mileage. First post fucking nailed it!!! |
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Posted: 8/31/2015 10:36:12 PM EDT
[#5]
Maybe I should see if premium helps mileage. I've been averaging 19-20mpg with restraint on this tank
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Posted: 8/31/2015 10:37:21 PM EDT
[#6]
I always use 93 and add sta-bil, my trk sits for 5-6 weeks at a time without starting, have had no issues.
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Posted: 8/31/2015 10:55:39 PM EDT
[#7]
Quote HistoryQuoted:
Sounds like I should be using midgrade
Quote HistoryQuoted:
Quoted:
No, the computer will "listen" for engine knock and retard special education the timing, resulting in less power and lower gas mileage. Sounds like I should be using midgrade
Particularly in hot weather. |
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Posted: 8/31/2015 10:55:43 PM EDT
[#8]
In before 'the manual says I should run 87 but I get more power and better mileage with 93.'
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Posted: 8/31/2015 10:57:12 PM EDT
[#9]
Quote HistoryQuoted:
Maybe I should see if premium helps mileage. I've been averaging 19-20mpg with restraint on this tank It wont. If the engine is not designed for premium it can not take advantage of its properties |
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Posted: 8/31/2015 11:02:09 PM EDT
[#10]
Quoted:
I've filled up with regular and haven't noticed anything, the manual says 87 is okay but 89 octane is preferred. Am I going to blow up my new truck? So you spend multiple thousands on a new truck.....but you can't afford to spend a few cents more per gallon to run the correct fuel that the manual calls for? 
Run what the manual says. Yes, the computer will retard the timing a little if he hears knock, but it can only pull so much timing out. And you are going to get less mpg and less power. I believe the manual says run at least 89 octane...no less. |
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Posted: 8/31/2015 11:02:41 PM EDT
[#11]
2014 Ram 1500 here and running cheap ass 87 all day. Avg MPG is 15 and cant tell a fuking lick of difference between that and mid grade. It's a fucking dodge it'll eat shit all day. As to the retarded knock'n, google Hemi Tick. These bitches knock from the factory
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Posted: 8/31/2015 11:05:23 PM EDT
[#12]
Quote HistoryQuoted: So you spend multiple thousands on a new truck.....but you can't afford to spend a few cents more per gallon to run the correct fuel that the manual calls for? Run what the manual says. Yes, the computer will retard the timing a little if he hears knock, but it can only pull so much timing out. And you are going to get less mpg and less power. I believe the manual says run at least 89 octane...no less. Quote HistoryQuoted: Quoted: I've filled up with regular and haven't noticed anything, the manual says 87 is okay but 89 octane is preferred. Am I going to blow up my new truck? So you spend multiple thousands on a new truck.....but you can't afford to spend a few cents more per gallon to run the correct fuel that the manual calls for? Run what the manual says. Yes, the computer will retard the timing a little if he hears knock, but it can only pull so much timing out. And you are going to get less mpg and less power. I believe the manual says run at least 89 octane...no less. It doesn't imply that it has to have one over the other. I'm not walking down to the truck to find it and take a picture right now.  |
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Posted: 8/31/2015 11:07:44 PM EDT
[#13]
Driven hemi dodges for the last 9-ish years. Never anything but the lowest octane, cheapest petroleum based swill I can find. Never any problems.
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Posted: 8/31/2015 11:08:32 PM EDT
[#14]
Quote HistoryQuoted:
In before 'the manual says I should run 87 but I get more power and better mileage with 93.'
That or "nothing but the best for my baby." |
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Posted: 8/31/2015 11:10:51 PM EDT
[#15]
Quote HistoryQuoted:
It doesn't imply that it has to have one over the other. I'm not walking down to the truck to find it and take a picture right now.
Quote HistoryQuoted:
Quoted:
Quoted:
I've filled up with regular and haven't noticed anything, the manual says 87 is okay but 89 octane is preferred. Am I going to blow up my new truck? So you spend multiple thousands on a new truck.....but you can't afford to spend a few cents more per gallon to run the correct fuel that the manual calls for?
Run what the manual says. Yes, the computer will retard the timing a little if he hears knock, but it can only pull so much timing out. And you are going to get less mpg and less power. I believe the manual says run at least 89 octane...no less. It doesn't imply that it has to have one over the other. I'm not walking down to the truck to find it and take a picture right now.
It's perfectly fine to run it. Modern ECM/PCMs and their associated sensors do a damn fine job. Just less power/mileage, though at only midgrade, it might not make much difference at all. Even turbo cars these days can run 87 just fine (caveat: on stock tune and turbo) without trouble, even here in the hot ass desert. |
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Posted: 8/31/2015 11:11:19 PM EDT
[#16]
I love threads like this. 87 actually has the most "power". 93 is the least sensitive, so it can withstand higher compression before detonation. Use what the manufacturer says. Putting higher innwont help if it wasn't designed for it.
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Posted: 8/31/2015 11:12:32 PM EDT
[#17]
i've got the charger hemi, mid-grade all day... company pays tho
in awd i average 12mpg combined in rwd only i average 17 combined on the highway in rwd at 55/60 i can average 34mpg depending on the terrain, at 75 i average about 25 |
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Posted: 8/31/2015 11:13:12 PM EDT
[#18]
2014 Ram owner and I never have paid any attention. I just buy gas when the gage tells me I'm low.
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Posted: 8/31/2015 11:17:55 PM EDT
[#19]
87 193K miles, runs like a champ
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Posted: 8/31/2015 11:31:01 PM EDT
[#20]
Nevermind
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Posted: 8/31/2015 11:33:01 PM EDT
[#21]
Quote HistoryQuoted: In before 'the manual says I should run 87 but I get more power and better mileage with 93.' |
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Posted: 8/31/2015 11:39:30 PM EDT
[#22]
I used to use 89 until I reprogramed my chip for high performance requiring 91 or better. Never had any engine issues either way.
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Posted: 8/31/2015 11:50:46 PM EDT
[#23]
Here in the high country mid-grade is 87 and low grade is 85 Octane. My Hemi(s) run fine on 85 or 87 Octane.
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Posted: 9/1/2015 12:04:04 AM EDT
[#24]
Quote HistoryQuoted:
Driven hemi dodges for the last 9-ish years. Never anything but the lowest octane, cheapest petroleum based swill I can find. Never any problems. Me too |
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Posted: 9/1/2015 12:09:09 AM EDT
[#25]
I have a 2013 Hemi 5.7 Ram 1500 with 392 gears in the ass end. I drive the shit out of that truck and average 15-16 on ethanol gas. If I run real gas I get a little better mpg.
My wife gets around 18-19 mpg but she drives like a freaking girl
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