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Fuel choice for the EZ30d


Cam_Jones
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In the market for an EZ30 Lancaster/outback although a lot of owners seem to use 91 regularly. My understanding was always that Subarus need 95 or 98 (especially turbo models). Is an EZ30 that's had 91 used in it regularly be a deciding factor as to whether I consider buying the car or not? Cheers and TIA. 

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40 minutes ago, BMCracer said:

Mine knocks a lot on 98 ( totally standard car with factory tune ), so there's no way I'd buy one that I knew had been run on 91.

Yours must be a one-off or have some wear. Otherwise all EZ30's would be prone to that and they've got a good rep as a reliable engine 

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  • 1 month later...
On 27/10/2020 at 11:22 AM, Cam_Jones said:

Yours must be a one-off or have some wear. Otherwise all EZ30's would be prone to that and they've got a good rep as a reliable engine 

They all do it, you just can't hear it. I only know it knocks because I have the BtSsm plugged in and displaying all the time, so I can see it happening. Before I got the BtSsm I would never have known.

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I’d be worried about general maintenance of everything else tbh 

 

I got a Bp legacy at 232,xxxk, ive just done 50,000k this year in mine, got it this time last year. Only issue I’ve had was the a/c, power steering belt pulley bearing destroying itself 

 

great cars, should have got one sooner 

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New Zealanders seem to have a huge issue with sticking the right / proper fuel in their cars.

I've watched people stick 91 into their 335's, S4's, WRX's  (makes a small part of me die internally).

 

In all fairness, no car should be running 91 ever, and JDM cars especially since they don't even fuel that drops to such terrible quality even available over there.

 

At least if you owned one, you'd have your own piece of mind knowing you're sticking the right kind of fuel in it. 

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1 hour ago, Shibe said:

In all fairness, no car should be running 91 ever, and JDM cars especially since they don't even fuel that drops to such terrible quality even available over there.

 

If it's tuned for 91 what's the harm? Example would be the new Highlanders, spec'd for 91, run great on it. Our boat motor (Suzuki) specifies 91. 

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1 hour ago, boon said:

 

If it's tuned for 91 what's the harm? Example would be the new Highlanders, spec'd for 91, run great on it. Our boat motor (Suzuki) specifies 91. 

 

Suppose the difference being whether if its a Japanese import not. Unsure about newer model JDM imports if companies started tuning them for 91? I'm guessing 'NZ New' and market equivalents come factory tuned for 91 to accommodate for the s****y fuel 😁

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5 hours ago, Shibe said:

 

Suppose the difference being whether if its a Japanese import not. Unsure about newer model JDM imports if companies started tuning them for 91? I'm guessing 'NZ New' and market equivalents come factory tuned for 91 to accommodate for the s****y fuel 😁


NZDM cars predominately come as AUS spec models and when indicated, are tuned to run adequately on 91. Even current gen NZ New Mazda 2.5 Turbo engines are spec'd to run 91...  😕  

Interestingly, their latest SkyActiv X engine requires minimum 95 octane or higher for the 'homogenous' or compression ignition petrol engine...

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