Nickinoo 0 Report post Posted April 27, 2021 So I was just wondering if a higher octane fuel will damage or benefit my bimmer, its my first 2012 x1, currently running on 91 was wanting to see if 95 would be better. Thanks for any feedback. Quote Share this post Link to post Share on other sites
curryinahurry 39 Report post Posted April 27, 2021 Hi Nicki, your x1 (regardless of engine size) should be running on premium only (95 or 98). Ethanol blends or not is not critical. They tend to knock and run poorly on 91 and you should feel a significant improvement in performance on premium particularly under load. Personally, I don't find any difference between 95 or 98, so I would run on whichever is available. 1 Quote Share this post Link to post Share on other sites
Nickinoo 0 Report post Posted April 27, 2021 Thanks for that I thought as much, your info is much appreciated. Quote Share this post Link to post Share on other sites
M3AN 4016 Report post Posted April 28, 2021 I agree with @curryinahurry in case you needed additional assurance. Skip the 91. Quote Share this post Link to post Share on other sites
Reeno 0 Report post Posted July 19, 2022 Hi there, similar question to above. What is the best fuel octane for a G20 330i. I was going to go with 95... Just picked it up on Monday, super excited! Quote Share this post Link to post Share on other sites
Navin 180 Report post Posted July 19, 2022 95 or 98 will be fine for it. As above, just skip 91. Enjoy the G20, have had mine for 2 years and still love it 1 Quote Share this post Link to post Share on other sites
Neal 544 Report post Posted July 21, 2022 In my e36 I found running on 98 would increase its range by 20 - 30 km per tank which offset the price difference at the time. Have always run higher octane. Better for the engines in BMW Quote Share this post Link to post Share on other sites
Sammo 2544 Report post Posted July 21, 2022 MY BMW runs better on diesel TBH 1 Quote Share this post Link to post Share on other sites
elias 253 Report post Posted July 21, 2022 35 minutes ago, Sammo said: MY BMW runs better on diesel TBH might try that in my 135i, cheaper too 1 Quote Share this post Link to post Share on other sites
E30 325i Rag-Top 2957 Report post Posted July 22, 2022 1 hour ago, elias said: might try that in my 135i, cheaper too Not by the time you factor in RUC… 😁 And it was dearer than 91 from the pump a few weeks back! 1 Quote Share this post Link to post Share on other sites
elias 253 Report post Posted July 22, 2022 20 minutes ago, E30 325i Rag-Top said: Not by the time you factor in RUC… 😁 And it was dearer than 91 from the pump a few weeks back! that is true, easy to fix on old cars though, wire switch into the positive lead going to the odometer 😁 Quote Share this post Link to post Share on other sites
