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Old 11-23-2011, 09:41 AM
bmw_n00b13's Avatar
bmw_n00b13 bmw_n00b13 is offline
Freude am Fahren
Location: Cambridge, ON
Join Date: Feb 2008
Posts: 6,374
Mein Auto: 99 528iA
Actually, despite my appreciation for people who use the recommended fuel in their cars, higher octane burns at a *lower* temperature than lower octane. Additionally, "proper" high-octane gas (i.e. gas that isn't ethanol blended to achieve the octane rating) gets there with higher levels of aromatic compounds that will increase carbon build-up if the car isn't built for it.and whether or not our cars are is up for debate, but they're not super-high compression engines.
'99 528i ('98/12 build). 282,000km BY29428/Royalrot
Breaking My Wallet since 2009
Mods: Stoptech SS brake hose, 280piece toolkit resting on trunk floor, Beisan VANOS seals, increasing amounts of duct tape and glue
'99 540i (grandfather's)

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