Klhuffman 1 Posted March 21, 2017 Share Posted March 21, 2017 (edited) I don't know if anyone on here knows but the new 2016 sparks with the new LV7 engines in them have a high compression ratio of 10.6:1 if you want increased fuel economy plus better performance, put in higher octane gas. I use 91 in my spark. throttle response and overall performance is noticeably better! the better gas works better with the high compression ratio Edited March 21, 2017 by Klhuffman Link to post Share on other sites
Lovgun7 75 Posted April 18, 2017 Share Posted April 18, 2017 whatever the manual says is what i go with. Link to post Share on other sites
Mr.tozzi 66 Posted April 19, 2017 Share Posted April 19, 2017 I really see no difference other than hitting me for a couple more dollars per tank in the spark. Running 87 or 89, 91, 93 feels the same to me. Link to post Share on other sites
Lovgun7 75 Posted April 21, 2017 Share Posted April 21, 2017 my dad and my girlfriends dad both swear they get better gas mileage with 91 lol dad has a 2006 silverado gf dad has a honda crv Link to post Share on other sites
ESToomere 0 Posted October 6, 2017 Share Posted October 6, 2017 Manual says above 91, the lowest they sell here is 95, that's the cheapest (about 4 USD per gallon) so that's what I go with. Link to post Share on other sites
graysono 1 Posted January 16, 2019 Share Posted January 16, 2019 I've been wondering about fuel type. Here in NZ we have 91, 95 or 98 octane ratings. Plus an ethanol blend but Spark can't use that from owners manual. Plus its insanely expensive! I've been using 91 and its good. Put a tank of 98 in today for a trial for a near 300km drive and wow, very noticeable performance difference! However it's NZD$2 a litre - USD$7.60 a US gallon! I'm going to empty it and try 95 - which is only - only! - $1.92 a litre. Owners manual says it will take all octanes. Guess wallet is decider as performance even on 91 is more than ok. Link to post Share on other sites
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