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The BMW Range
///M Cars
..potential issues with ron95..
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<blockquote data-quote="tropos_net" data-source="post: 661820" data-attributes="member: 2595"><p>all engines running on OBD II will adjust accordingly via knock sensor.</p><p>but the compression ratio in M engines versus non M engine vary quite a bit hence the the 95RON</p><p>would mean more unsuited to M engines due to high compression.</p><p></p><p>the OBD II algorithm would ensure safe operation either way but the effect is less power. so maybe</p><p>aspirated driving should be avoided should you need to use lower octanes.</p></blockquote><p></p>
[QUOTE="tropos_net, post: 661820, member: 2595"] all engines running on OBD II will adjust accordingly via knock sensor. but the compression ratio in M engines versus non M engine vary quite a bit hence the the 95RON would mean more unsuited to M engines due to high compression. the OBD II algorithm would ensure safe operation either way but the effect is less power. so maybe aspirated driving should be avoided should you need to use lower octanes. [/QUOTE]
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