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Is the 2.4 worth paying the extra for?

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Old 09-27-2005, 04:43 PM
  #11  
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Originally Posted by adamlowery
Does it help a car at all to use better octane gas? If so what does it do?

In the owners manual it claims that if you use anything less than 91 with the 2.4l then your acceleration will be slowed and you will hear a knocking noise...
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Old 09-27-2005, 06:10 PM
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I've been using 87 octane in my 2.4L and I will admit that recently after I turn of the car, I do hear pinging. Next fill up will be with 91. I'll let you know if the pinging stops.
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Old 09-27-2005, 07:28 PM
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Been using 87 since day 1 and no knocking.
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Old 09-28-2005, 02:33 AM
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I agree 87 octane since day 1 and no pinging, buy my gas at Indian Res with no problems in engine. 2000 plus miles so far!
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Old 09-28-2005, 05:42 AM
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Originally Posted by parky
... buy my gas at Indian Res with no problems in engine.
How much cheaper is that?
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Old 09-28-2005, 09:57 AM
  #16  
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Maybe I'm mistaken, does the pinging sound like little rocks hitting the inside of tin can? Kind of like tick, tick, tick tick, tick after the engine has been turned off a couple of minutes.
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Old 09-28-2005, 10:11 AM
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Originally Posted by mtbiker-s
Maybe I'm mistaken, does the pinging sound like little rocks hitting the inside of tin can? Kind of like tick, tick, tick tick, tick after the engine has been turned off a couple of minutes.

I don't hear anything after I turn mine off, (I have the 2.4L). Try changing your gas, just too see, it sys that after you run the 91 or higher for a bit it should stop, if not take it to the dealer....but let us know either way, I'm curious on this....
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Old 09-28-2005, 11:56 AM
  #18  
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Originally Posted by teknobunie
I don't hear anything after I turn mine off, (I have the 2.4L). Try changing your gas, just too see, it sys that after you run the 91 or higher for a bit it should stop, if not take it to the dealer....but let us know either way, I'm curious on this....
I think I will do that. I'll try the 91 and see what results I get. I'll be taking a nice 2K road trip next week so I'll definantly experiment with octane levels.

Will post results upon my return
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Old 09-30-2005, 03:37 AM
  #19  
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Gas at the Indian Reservation is around .25c a gallon cheaper. 87 Octane.
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Old 09-30-2005, 03:41 AM
  #20  
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Exhaust Cooling Sounds

Originally Posted by mtbiker-s
Maybe I'm mistaken, does the pinging sound like little rocks hitting the inside of tin can? Kind of like tick, tick, tick tick, tick after the engine has been turned off a couple of minutes.
That possibly is the exhaust system cooling down, mine clicks/ticks after shutting off also. It is no problem, just a hot metal cooling down.
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