2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

Gas Octane Level, does it matter?

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Old Dec 16, 2009 | 11:49 AM
  #26  
ebristol's Avatar
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I heart TC owners.
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Old Dec 16, 2009 | 12:04 PM
  #27  
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From: Glen Burnie MD
Originally Posted by REIGN SS
Everyone gets on it when they test drive there car, lol... If you don't I'm sure previous buyers/dealer employees have.

How does that condone you from still letting it break in ?????????????
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Old Dec 16, 2009 | 12:21 PM
  #28  
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From: Sunshine State
Originally Posted by n323er
How does that condone you from still letting it break in ?????????????
Modern cars don't really NEED as much break in ritual as the older cars. They are built with better materials, better (not necessarily closer) tolerances, design and quality control. That's not to say you should take delivery of a new car directly from the dealership to the drag strip and flog it all day. I took delivery of my 09 sedan Oct a year ago at around 11:00 AM and left for a 1200 mile trip to NY at around 3:00 PM the same day. I didn't get on the interstate in FL and see how fast I could do the trip though. I stayed on US 1 till I got to Atlanta. Parked the car at a motel (normally I do the trip non stop in less than 20 hours with the dog slowing me down a little) and got on the interstate the next day. The rest of the way I varied my speed from 50 to 70 without running at a constant speed for the rest of the trip. I also took many time outs to let the dog take a leak. When I got to my destination, Albany, NY, I did an oil change and that was the extent of my "Break in period". My car starts on the second or third rotation every time, idles as smoothly as a GM tuned 4 cyl car with full bolt-ons can be expected to idle and puts a big smile on my face every time I nail it.
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Old Dec 16, 2009 | 12:27 PM
  #29  
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Originally Posted by n323er
How does that condone you from still letting it break in ?????????????
What? Improper useage.
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Old Dec 16, 2009 | 12:29 PM
  #30  
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Baby a motor during break-in and expect blow-by since the rings won't seal properly. I'm not saying drive the ***** off it and beat the snot out of it, but drive it hard and work the RPM range.

Originally Posted by ebristol
I heart TC owners.
Uh what?
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Old Dec 16, 2009 | 12:33 PM
  #31  
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Originally Posted by ebristol
I heart TC owners.
awwww...we heart you too
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Old Dec 16, 2009 | 12:43 PM
  #32  
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From: Sunshine State
Originally Posted by Permafried-
Baby a motor during break-in and expect blow-by since the rings won't seal properly. I'm not saying drive the ***** off it and beat the snot out of it, but drive it hard and work the RPM range.


Uh what?
I think you said what I was trying to say but you did it in far fewer words. To explain why the rings won't seat. At slower speeds the cylinders get washed down more by residual gasoline and are more likely not to seat properly. Higher speeds limit this more. Running the car at varying speeds, run up to 70 - 80 then releasing the throttle and coasting back down to a more reasonable speed allows the valve stems to seat better in the guides by the process of low manifold vacuum to high manifold vacuum and back and forth. Low vacuum (or negative boost if you want to call it that, it"s actually a higher number higher numerically) tends to pull oil away from the guides while high vacuum (or boost in a SC or TC car) tends to move the oil towards the guides.
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Old Dec 16, 2009 | 02:20 PM
  #33  
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Originally Posted by Permafried-
Uh what?
TC owners spend $23k on a new car for month payments of approximately $450/m. And then do not want to spend the extra $4 per fill up to put in premium fuel...

(I know some paid less, some paid more, some had their parents buy the car, w/e)

Its just funny!
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Old Dec 16, 2009 | 02:48 PM
  #34  
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pshhhh...I dont mind the 20 cents extra for gas.. Im lazy and pay the $100 at a jiffy lube or Mr. Goodwrench to get my oil changed, lol. money has not ceilings here when it comes to car care. except for those damn breaks I dont have time for those yet. nor the cash
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Old Dec 16, 2009 | 02:54 PM
  #35  
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From: London, Ontario
Originally Posted by ebristol
TC owners spend $23k on a new car for month payments of approximately $450/m. And then do not want to spend the extra $4 per fill up to put in premium fuel...

(I know some paid less, some paid more, some had their parents buy the car, w/e)

Its just funny!
There's just as many SC owners that are as oblivious; this argument has been ongoing since the car was released in '05 . I say we throw them all into the same bucket
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Old Dec 16, 2009 | 04:43 PM
  #36  
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Originally Posted by Permafried-
There's just as many SC owners that are as oblivious; this argument has been ongoing since the car was released in '05 . I say we throw them all into the same bucket
Very true! I used to pick on those guys too. By now MOST of them have figured it out. But if there was a thread started in the LSJ section there would be a few replies from guys who run 87 octane all the time and claim no adverse effects!
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Old Dec 17, 2009 | 02:28 AM
  #37  
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From: SoCal
Originally Posted by reign1
wish I had 93 octane
In Northridge there's a gas station at the corner of Nordhoff and Corbin that sells Trick gasoline at the pump. 102 octane, baby (or rather, 97 as calculated by R+M/2).

Never tried it yet. Maybe one of these days I'll pour a tank of it in and see how she runs.
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Old Dec 17, 2009 | 09:55 AM
  #38  
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Originally Posted by ebristol
Very true! I used to pick on those guys too. By now MOST of them have figured it out. But if there was a thread started in the LSJ section there would be a few replies from guys who run 87 octane all the time and claim no adverse effects!
Yep, and no matter how hard you try you can't convince them otherwise, so I digress
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Old Dec 17, 2009 | 12:28 PM
  #39  
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With you having a Trifecta Tune and probably not for 87 octane I would either completely stay out of boost or drain the tank.
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Old Dec 17, 2009 | 12:58 PM
  #40  
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From: Sunshine State
Originally Posted by stealthsky
With you having a Trifecta Tune and probably not for 87 octane I would either completely stay out of boost or drain the tank.
Unless the Trifecta tune completely turns off the knock sensor he should be good till he gets some 93 in the tank. As long as he doesn't flog the thing. Knock is also known a pre-ignition which is when the incoming charge ignites too early before the piston gets to top dead center (TDC), or too far advanced. Too much pre-ignition is an engine killer. The knock sensor detects this knock and retards the ignition timing to protect the engine. As long as he doesn't flog the **** out of it he should be good till he gets some 93 in it. As soon as the gas gauge gets to 3/4 fill it with 93 and keep doing that 4 or 5 times. That will build the octane level a little at a time till it eventually gets to pure 93. I would NOT use an off the shelf octane enhancer. Or ANY other additive in my engine. Ever heard of snake oil? Draining the tank is WAY, WAY too much overkill. If the tune increases the advance so much they MUST remove the knock sensor and DOES remove the knock sensor protection I don't want a Trifecta tune.
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Old Dec 17, 2009 | 05:05 PM
  #41  
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From: Roanoke, VA
Originally Posted by ebristol
TC owners spend $23k on a new car for month payments of approximately $450/m. And then do not want to spend the extra $4 per fill up to put in premium fuel...

(I know some paid less, some paid more, some had their parents buy the car, w/e)

Its just funny!
That is in no way the case. My dad had to drive my car while I did some work to his truck and he accidently put 87 in like he typically does in his truck. I babied it down to a half tank and refilled it with 93. I am going to ease through this tank and hope for the best. Thanks for all the helpful information.
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Old Dec 17, 2009 | 05:09 PM
  #42  
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From: North Jersey
Originally Posted by XStylus
In Northridge there's a gas station at the corner of Nordhoff and Corbin that sells Trick gasoline at the pump. 102 octane, baby (or rather, 97 as calculated by R+M/2).

Never tried it yet. Maybe one of these days I'll pour a tank of it in and see how she runs.
save your money unless you're going to tune...
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