Higher octane useful?
Member
Joined: Jul 2006
Posts: 50
From: Richmond Hill, Ontario
*the below is just a personal experience, without any scientific research*
After installing the SRI, I do find a different between 87 and 89. With 87, the engine seems to be "lagging"; but it does improve when using 89. Haven't tried 91 or above since I really don't see the idea of using them. Maybe the SRI (with more air available) "requires" the use of 89? Just my .02
After installing the SRI, I do find a different between 87 and 89. With 87, the engine seems to be "lagging"; but it does improve when using 89. Haven't tried 91 or above since I really don't see the idea of using them. Maybe the SRI (with more air available) "requires" the use of 89? Just my .02
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JFit123
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Aug 11, 2025 11:41 PM
