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car pinging on 91 

 

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 Post subject: car pinging on 91
Posted: Tue Jul 14, 2009 9:25 pm 
Getting Side Ways
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Joined: 11th Nov 2007

Ride: f6 rspec

Location: Sydney
NSW, Australia

Hey guys, my car seems to ping when filling with normal unleaded. I tried a few tanks of premium and it seemed to have gone away..any reason why this is happening?

it only started to do this recently, and ran fine before on normal 91ron fuel..
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 Post subject: Re: car pinging on 91
Posted: Tue Jul 14, 2009 9:35 pm 
Getting Side Ways
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Ride: Envi EF

Location: Grafton
NSW, Australia

140+ rwkw is really pushing to be run on 91 IMO, I'd be running on 95 at least.

 

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 Post subject: Re: car pinging on 91
Posted: Tue Jul 14, 2009 9:41 pm 
Parts Gopher
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Age: 53

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Ride: ELXR8

Location: Newcastle
NSW, Australia

I used to run my ELXR8 on unleaded then it started pinging once the ks started to get up. Now I use 95 premium car runs great on it last week 535ks around town on a tank.
279000 ks on the clock 5 speed manual.
Dave.

 

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 Post subject: Re: car pinging on 91
Posted: Tue Jul 14, 2009 10:03 pm 
Getting Side Ways
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Posts: 1221

Joined: 11th Nov 2007

Ride: f6 rspec

Location: Sydney
NSW, Australia

whats power got to do with the fuel?

its still running standard compression so i thought it would of been fine using the fuel it was made to run on- 91.

Might just be getting old, ill try 95ron in the next few tanks and see how i go.
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 Post subject: Re: car pinging on 91
Posted: Tue Jul 14, 2009 10:33 pm 
Technical Contributor
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Ride: 2.0 Turbo VW

Power: 142 rwkw

Location: Seaford State:
VIC, Australia

meh, I ping on 98 :/

ever since I did the head and au mls.

 

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 Post subject: Re: car pinging on 91
Posted: Wed Jul 15, 2009 2:02 pm 
Getting Side Ways
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Age: 49

Posts: 6467

Joined: 18th Dec 2006

Ride: 93 ED sedan

Power: 161 rwkw

Location: Rockhampton
QLD, Australia

FORDom wrote:
whats power got to do with the fuel?

its still running standard compression so i thought it would of been fine using the fuel it was made to run on- 91.

Might just be getting old, ill try 95ron in the next few tanks and see how i go.


Try putting in some injector cleaner.....and maybe shout it a new fuel filter.
Have you checked the ignition timing lately?????

 

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 Post subject: Re: car pinging on 91
Posted: Wed Jul 15, 2009 3:20 pm 
Getting Side Ways
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Ride: AU2 75th Anniversary Futura

Location: Adelaide
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I find that some of the lower ron fuels are becoming poorer and poorer in quality. My mrs has an 89 KE laser, always used 91ron fuel for years, only over the last couple of years does the car ping, but as soon as I noticed that, I told her to start using 95ron fuel. Made the car idle better and give a little bit more power.

 

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