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I'm picking up my new S40 tonight so I have a few questions. I did a search and didn't see anything, which surprised me, so I'll have to assume this hasn't been covered. What brands and octane are S40 owners using? I've been a VW owner/enthusiast for years, so I'm familiar with the 1.8T engine, but I'm curious how the 1.9T handles lower grades of gas. Is it a noticeable difference in mileage or performance?
 

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"What brands and octane are S40 owners using? I've been a VW owner/enthusiast for years, so I'm familiar with the 1.8T engine, but I'm curious how the 1.9T handles lower grades of gas. Is it a noticeable difference in mileage or performance?"

hi!

i had a Factory Tech at a Dealer Seminar tell me that although Volvo recommended 92 Octane for the turbos, that they test them with everything in a 'Worst-Case' scenario. his description led me to believe that although they will run on lower Octanes and adjust to accomodate it, the best power/performance will only be gotten with 92.
that being said, i only run Chevron 92 Octane in mine.


cheers!
e
 
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