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octane

  1. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Like the title says, what do you guys think if I tune for 89 instead of 91-93? Is tuning with 93 worth the $8-$10 extra at the pump? I really haven’t come across anyone on the web that tune for other than premium , most discussions are based on premium. No bolts on, not planning too either in...
  2. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hey everyone, posted about my ride before, I'm in Namibia, (not Nambia?) and planning on doing a few things to my BM Mazda 3. I shall get an AEM Cold air intake and an OV tune. One thing i know and seen through the forums is that our babies love high octane fuel, but here in Namibia our fuel...
  3. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    I have a 2018 mz3 2.5L hatchback. Do you know if it’s okay to run higher octanes stock without getting a tune or modifications to the car or what he beat octane would be for the engine? The user manual says 87 but not sure if it’s okay to run 91 and 93 safely on just the stock map.
  4. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    *Disclaimer, the entirety of this discussion is based off oem factory tuning and my altitude locally is 3573feet above sea level* So about 3 weeks ago I decided to take a stab at using Midgrade 89 octane(no ethanol) in my 2017 2.5L Mazda 3 just to see if I noticed any difference. A few days...
  5. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Just wanted to quickly check what everyone is using for fuel octane on the 2.5L Skyactiv. Im sure the manual will say regular 87 Octane but they say that about the new civic turbo(non-si) and Im told their having many issues because of that. Which serves them right for trying to run variable...
  6. 2014-2018 Mazda 3 Skyactiv Discussion
    Hey all.. brain dead right now. Just trying to figure out cost of MPG increase. Not sure about everyone but where I live, the grades of gas are usually $0.10 difference. So for example right now... 87 = $2.79 ... 89 = $2.89 ... 91 = $2.99 So say I do a mod or change Octane that increases my...
  7. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    I've reached out to OV in order to ask some questions about their tune. In the meantime, I was looking at their FAQs and there is something that throws me off a bit. I was hoping members that are in the Know, or better yet have actually had the Tune done, can clarify something. In their FAQs...
  8. 2004-2009 Mazda3 Discussion
    Hi Im new here, so i was wondering if anyone had put 93 octane on their mazda 3 with a tune and what hp increase had if any. I once put 93 on my stock mazda 3 i sport sedan and remered it a bit more torquier but thats just probably a mind trick of myself. I know the mzr have a compression of...
  9. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hello! I have a 2.0 sedan, and I have purchased the CorkSport SRI and Cold Air Box, Racing Beat Axle Back Exhaust, as well as theCorkSport Front Strut Tower Bar and and Rear Sway Bar for better handling. Hell, I even splurged on all weather floor mats and $100 for a detail recently. I've gone...
  10. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hello .. im new to mazda .. and i know that this skyactiv 2.0 engine has high compression.. will it benefit or gain slight better performance if i use 89 or 93 octane without damaging the engine? or knock... and if those of you who use 89 or 93 octance fuel please tell me how its like.?? thanks...
  11. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hey guys, I was wondering which route I should go. I have the 2.5L skyactive and just starting to get it tuned. Will going the 91 route give me better output with horsepower as well as a better tune?
  12. 2004-2009 Mazda3Appearance & Interior
    i was wondering if anyone is running higher than the recommended octane in the 04-09 2.3L mazda 3 motors? i am looking for feedback on this as i seem to find something odd. when i put 93 in on accident last fill up, it seems to be a bit more responsive and seems to be getting better mpg.i have...
  13. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    Hi, I have wondered for years why Hi Octane fuel is more expensive than regular. If one litre of gasoline has the same amount of energy in it no matter what octane level, why the cost premium? A high octane level is as I understand to stop pre-ignition in high compression engines. Putting it...
  14. 2014-2018 Mazda 3 Skyactiv Engine and Performance
    I wanted to start this thread since it comes up on every car forum and never seems to be resolved. I am, by no means, an expert or an engineer and do NOT want to come across as one. This is all based on articles and real life experiences. I have seen many people,on many forums, ask if going...
  15. 2010-2013 Mazda 3 Engine and Performance
    Just recently purchased a mz3 ! I filled it up with 93 octane because I was not sure if 87 was okay or not. Didn't get to find that using 87 is just fine until now. Now , I'm wondering if using higher octane will damage the engine ? I know if it was the other way around , it could harm the...
  16. 2010-2013 Mazda 3 Engine and Performance
    I have a 2010 Mazda 3i and I have been putting 93 Octane gas on my car. Does having higher octane on our cars really make a difference or am I just burning my money? thanks in advance.
  17. 2010-2013 Mazda 3 & Skyactiv Discussion
    Hey folks, so I filled up with Shell 87 the other day and my MZ3 2.0L auto ran horribly on it. I thought Shell was a top-tier but I'm wondering if I keep getting bad tanks from them ? One thing I noticed in addition to lousy power was a consistent knock/ping under load at around 2000 RPM and...
  18. 2010-13 Mazdaspeed 3 News & Discussion
    First Post :) I know 91 is recommended, but I only have access to 92 from WaWa and 93 from every other gas station. My question is should I strictly use WaWa because it is closer to the 91 or start using 93 because it is more readily available? Or am I just being paranoid about the difference...
  19. 2010-2013 Mazda 3 Engine and Performance
    Since it has been constantly refered to octane level in the thread about advanced timing mod and that a lot of things have been said about it (not only on this forum) why not give it its own thread... Opinions about octane level are very different and as a consequence information found about it...
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