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High Mileage Gen 3's & how are they doing?

furdfan2018

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Given most of my driving is normal commute there is zero reason for me to use 93. When I go to the track I'll probably ensure the fill ups before that are loaded with 93 to ensure for max power but right now I'm on stock tune and exclusively using top tier gas only. So zero reason to use 93 right now.
You obviously have 0 understanding of whats happening so ill do my best to no be rude.

Your car is 12:1 compression and these motors routinely test at 215 psi or better. Any time there is a load on the motor-- and no, not necessarily "flooring it" (going up hill, short shifting leading to a lugging of the motor, light throttle applications in high gear or on an incline, high IAT's or coolant temps or BOTH, etc etc etc) this motor will experience spark knock on 87 octane.

You can close your eyes all you want, but at least after today you can no longer claim ignorance.

Unless you plan to replace the motor soon due to busted piston ring lands, popped head gaskets, or worse, keep doing what youre doing.

Enjoy!
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furdfan2018

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I'll also add... the fact that you got a CHECK ENGINE light from excessive knock should be alarming to you.

This is not normal.
 

Zrussian13

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Did you find much difference tuning a basically stock car ?
It was an e85/ flex tune so yes. It really woke the car up for a simple mod. When I ran the 91 tune not really much to see there. Felt about stock lol. If you have an A10 some say the transmission tuning alone is worth it but mines an mt82 car so can't confirm that.
 

Canadian Crimson

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It was an e85/ flex tune so yes. It really woke the car up for a simple mod. When I ran the 91 tune not really much to see there. Felt about stock lol. If you have an A10 some say the transmission tuning alone is worth it but mines an mt82 car so can't confirm that.
Yeah no I have an MT82 and and no magic Voodoo juice where I live lol. Just 91
 

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JetGray_Mach1

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Given most of my driving is normal commute there is zero reason for me to use 93. When I go to the track I'll probably ensure the fill ups before that are loaded with 93 to ensure for max power but right now I'm on stock tune and exclusively using top tier gas only. So zero reason to use 93 right now.
I know 87 CAN be used on this car. BUT this performance motor with high compression, 87 octane on a hot day is asking for more knock and constant retarding of timing by the ECU. This motor loves higher octane you may be spending more up front but your motor will thank you. Also you will have more power and you may even get better gas mileage so the slight cost increase will be negligible.

I wish I had 93 in Cali, I am stuck with shitty 91.
 

Garfy

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I know 87 CAN be used on this car. BUT this performance motor with high compression, 87 octane on a hot day is asking for more knock and constant retarding of timing by the ECU. This motor loves higher octane you may be spending more up front but your motor will thank you. Also you will have more power and you may even get better gas mileage so the slight cost increase will be negligible.

I wish I had 93 in Cali, I am stuck with shitty 91.
Yep, same here in UT where we only have 91, but it probably has to do with not needing 93 as we're at 5000 feet altitude. Running premium (91/93) can definitely result in better fuel economy as the engine will be more efficient in not having to retard ignition timing as much, etc. I got 29 mpg driving down to Vegas (normal driving, not aggressive) which surprised me but I suppose the A10 and 3.15 gearing are reasons for that. However, I did run 87 in HI during break-in (first 1000 miles) but on the switchover from 87 to 93 I did find that the 0-60 time went from 6.0 seconds down to 4.9 seconds with conditions being the same (same stretch of road, trac control enabled, etc.) So yes, it does make a huge difference in performance. The engine still wasn't fully "loose" yet as 4.9 sec isn't great but I didn't expect much better with the stock Pirellis on it.
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