Previous owner used 89 octane, switch to 91?
05-19-2002, 07:53 PM
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Previous owner used 89 octane, switch to 91?
When I picked up my car I asked him what he was using. He said he always used the mid-level octane and had good results (no pinging, I guess). Everything I have read hear indicates that hign octane is pretty essential. Are there any issues with changing now?
05-20-2002, 05:27 AM
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Thanks guys - I'll make the change today when I fill up. BTW, I thought it was interesting to note that the cost savings of using 89 vs 91 for the 2 years and 22k mi that the previous owner put on the car was around $100. Hardly worth it IMHO.
05-20-2002, 06:16 AM
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I've noticed about a 5-10% improvement in fuel economy with 91 or 93 octane over "regular". I don't think that completely makes up for the increased cost, but from a tree-huggers standpoint, fewer pounds of CO2 in the air.
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05-23-2002, 12:48 PM
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The prior owner of the S2000 should've been shot for using crap gas. The thought of it brings agony. 
Seriously, why would you use 89 octane in the S2000? Talk about being cheap. Sheesh.
Seriously, why would you use 89 octane in the S2000? Talk about being cheap. Sheesh.
05-24-2002, 12:59 PM
#10
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Originally posted by Fastlane
I would change right away you will feel the difference . My car doesn't even run right with 91 , I have to always put octane booster with each fill-up
!
I would change right away you will feel the difference . My car doesn't even run right with 91 , I have to always put octane booster with each fill-up
!