What have you - Shell 91 vs Suncor 94

mimik · 05-11-2010, 01:02 AM

I think the fuel pump failures seem limited to the 335s. I don't think it applies to other models of BMW. I started with Petro Can 94, then switch to shell for a while now back to PetroCan94. I was also told higher octane equals better mileage. I really don't see the difference.

335BBS · 05-11-2010, 09:12 AM

Quote:

Originally Posted by mimik

I think the fuel pump failures seem limited to the 335s. I don't think it applies to other models of BMW. I started with Petro Can 94, then switch to shell for a while now back to PetroCan94. I was also told higher octane equals better mileage. I really don't see the difference.

Higher octane fuel burns more efficiently and precisely. You wont get better mileage and it certainly will not make an engine sound different.

View Poll Results: Got Gas: Shell 91 vs Suncor 94
Shell 91 Octane	28	56.00%
Suncor 94 Octane	22	44.00%
Voters: 50. You may not vote on this poll

05-11-2010, 01:02 AM	#23
mimik Private First Class 9 Rep 150 Posts Drives: 2006 BMW 325xi Blue Monaco Join Date: Sep 2009 Location: Montreal iTrader: (0)	I think the fuel pump failures seem limited to the 335s. I don't think it applies to other models of BMW. I started with Petro Can 94, then switch to shell for a while now back to PetroCan94. I was also told higher octane equals better mileage. I really don't see the difference.
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