From: Snag_one@msn.com   
      
   On 9/12/2022 4:16 PM, Chris K-Man (Zickcermacity) wrote:   
   > On Monday, September 5, 2022 at 4:49:35 PM UTC-4, AK wrote:   
   >> My 2009 mazda cx7 recommends premium grade gas.   
   >>   
   >> I have been using mid grade for about 5 years with no issues.   
   >>   
   >> I get the advertised gas mileage. 20/28 city highway.   
   >>   
   >> Is my car retarding the timing by that?   
   >>   
   >> I read where that can causing knocking.   
   >>   
   >> Wondering if regular gas would work.   
   >>   
   >> The price used to be only about 30 cents more to upgrade to midgrade.   
   >>   
   >> That is no longer the case.   
   >> Thanks,   
   >> Andy   
   > _________________   
   >   
   > I've heard that it's better in the long run, for lawn and snow equipment, to   
   splurge on a 1-2gallon tank of 89 or 93 octane gas, because I was told it had   
   a lower amount of ethanol or mtbe in it - additives that can damage mowers and   
   snow throwers.   
   >   
   > Any validity to this claim?   
   >   
      
      I don't know about where you live , but here we can get non-ethanol   
   premium . Useta be able to get non-eth regular too but they shut that   
   station down because they wouldn't lease new pumps . I burn that premium   
   in my bikes , and a 50/50 mix in my Stihl engine tools - until they cut   
   off my supply of N-E regular , now they too will get premium when my   
   supply of 50/50 is gone.   
      I don't know yet what the new motor in the truck wants but I'm hoping   
   it'll burn 87 octane - with a 9.7:1 c/r and other performance mods it   
   might want mid-grade . It's old enough (1986) that it doesn't have   
   computerized controls . Fortunately it's not destined to be a daily   
   driver , it's my toy now . Can you say "sleeper" ?   
   --   
   Snag   
   "You can lad a dummy to facts   
   but you can't make him think."   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)