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Regular or Premium gas?

 
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  #1 (permalink)  
Old 16 Aug 2017, 06:57 pm
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Join Date: Aug 2017
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Question Regular or Premium gas?

Hello ther,
New user here and a very new owner of my 05 PT Cruiser Convertible

I know theres many threads about this..but Im not sure if my Cruiser is a turbo lite or turbo GT

Also, I read that it says on the lid that premium is recommended, but I cant see any of that on my lid....is that common?
Does it mean it is a Turbo lite meaning regular gas would be okay?


Pleas help....New owner and a young student
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Old 16 Aug 2017, 07:20 pm
rockandroller's Avatar
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Default Re: Regular or Premium gas?

Yer turbolite works with any gas... BUT IT REALLY PREFERS 94 octane
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Old 16 Aug 2017, 07:35 pm
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Default Re: Regular or Premium gas?

Quote:
Originally Posted by StudentCruiser View Post
Hello ther,
New user here and a very new owner of my 05 PT Cruiser Convertible

I know theres many threads about this..but Im not sure if my Cruiser is a turbo lite or turbo GT

Also, I read that it says on the lid that premium is recommended, but I cant see any of that on my lid....is that common?
Does it mean it is a Turbo lite meaning regular gas would be okay?


Pleas help....New owner and a young student

We've determined that your car is Touring Edition, right? A Touring Edition with the turbo option is a "Turbo Lite". But I've never seen a report that any of these has a decal indicating a preference for premium fuel. But who knows?

Your engine is mechanically identical to the high output GT engine. The only difference is the tuning of the computer (PCM). Your engine is tuned to an advertised 180 hp and can run regular 87 octane or better fuel. That's about the same as an old factory carbureted 350 small block V8 Chevy engine. And it's nothing to sneeze at. The GT is tuned to around 220 hp depending on the year and needs premium fuel to avoid knock. This is due to higher turbo boost pressure and more advanced ignition timing.

My PT vert started life as a Touring Edition. And here's the 8 psi turbo boost with the factory PCM.



And here's the 15 psi boost with the custom Stage 1 PCM from Syked ECM Tuning.




You too can add a Stage 1 PCM to your car and go beyond the GT. You might gain a "theoretical" 50 hp or more though you would need a dyno run before and after to determine the true gains. And you will need to run premium fuel after that.
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Old 16 Aug 2017, 08:40 pm
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Default Re: Regular or Premium gas?

Re: Regular or Premium gas?

Technically speaking you run the highest octane needed to prevent or reduce pre- ignition. (pinging knocking)

If you are in doubt run your VIN to see which model PT Cruiser you have and look up all the specification and run the recommend fuel.

You could always just run the highest octane available in your area but it may not be necessary.
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Old 17 Aug 2017, 06:38 am
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Question Re: Regular or Premium gas?

Quote:
Originally Posted by NitroPT View Post
Re: Regular or Premium gas?

Technically speaking you run the highest octane needed to prevent or reduce pre- ignition. (pinging knocking)

If you are in doubt run your VIN to see which model PT Cruiser you have and look up all the specification and run the recommend fuel.

You could always just run the highest octane available in your area but it may not be necessary.
I got this when I put my VIN on dodge.com

Any help here?

Vehicle Description 2005 CHRYSLER PT CRUISER 2-DOOR CONVERTIBLE
Monotone Paint
510 Amp Maintenance Free Battery
Power Front Disc/Rear Drum Brakes
Easy Access Passenger Seat
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Basic Owner's Manual
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  #6 (permalink)  
Old 17 Aug 2017, 07:00 am
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Default Re: Regular or Premium gas?

As Handy said, you can use 87 or better (regular or better) if your car is as it was from the factory. If you upgrade the PCM then you will be required to use only premium.

If it was me, and my car was a Lite and bone stock, I would still run at least mid-grade (89+) just to be safe.
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  #7 (permalink)  
Old 23 Aug 2017, 08:06 am
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Default Re: Regular or Premium gas?

Turbo-Lite, use regular. GT, use premium. NA, use regular. Tuned, use premium.

GT's can use regular in a pinch, but It aint the best idea. I ran regular in my GT at first to highway it, but then used Premium once I got into town.
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Old 23 Aug 2017, 06:04 pm
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Default Re: Regular or Premium gas?

I ran Murphy regular in my GT 99% of the time. NEVER had any fuel or performance issues. Mostly cooling problems, but since I sold it, I don't have to worry about that anymore!
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  #9 (permalink)  
Old 23 Aug 2017, 06:15 pm
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Default Re: Regular or Premium gas?

Quote:
Originally Posted by chuzz View Post
I ran Murphy regular in my GT 99% of the time. NEVER had any fuel or performance issues. Mostly cooling problems, but since I sold it, I don't have to worry about that anymore!
Yeah, but Murphy Oil is an Arkansas based company. That gives their gas at least 6 octane points over all others.
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Old 23 Aug 2017, 06:49 pm
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Default Re: Regular or Premium gas?

I've had my 03 GT for 11 1/2 years, have 137,500 miles on it, Stage 1 for 11 years and I'm sure at least 490 of my approx. 500 fill ups have been the best premium available. Ethanol free when available.
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