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Registered
Join Date: Oct 2003
Location: Michigan
Posts: 14,093
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1999 528--premium fuel?
So, while waiting for our 528iT to be delivered I am wondering if it will need premium fuel. I use the highest octane I can in the 911 but am kind of hoping the BNW can use regular. Any opinions?
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1981 911SC ROW SOLD - JULY 2015 Pacific Blue Wayne |
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02-09-2008, 02:45 PM
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I suspect it is spec'd at 89 octane. 87 will work on road trips and if you don't hot rod it around town.
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HPDE Instructor (BMW / PCA / Apex) Here: 1997 M3/4 Byzanz/Magma ~ 2006 Yamaha R6 ~ 1997 R1100RT ~ 1991 Ford F-150 5.8l ~ 2015 Kia Optima Gone: 2001 330i Silver/Grey ~ 98 Camry V6 ~ 97 Camry I4 ~ 97 Mazda 626 I4 ~ 93 Sentra SE-R ~ 88 Toyota Truck I4 |
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02-10-2008, 06:17 PM
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Join Date: Dec 2007
Posts: 25
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I tried 87 in mine and mileage per tank dropped 50-70 miles b/w fill ups.
380+miles / tank @ 87 ~22/MPG 460+miles / tank @ 91 ~25/MPG 18.5Gal fill ups on average over the past 6 months This is @ 80-85 highway and average MPH is currently 40.8. |
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02-22-2008, 10:40 PM
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On every fillup I log:
miles gallons OBC MPG octane I have never seen a difference between 87 and 93 octane. I did notice a BIG drop in MPG on my 330 in Feb 2005 which is coincidentally the month I gave the car to my wife.
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HPDE Instructor (BMW / PCA / Apex) Here: 1997 M3/4 Byzanz/Magma ~ 2006 Yamaha R6 ~ 1997 R1100RT ~ 1991 Ford F-150 5.8l ~ 2015 Kia Optima Gone: 2001 330i Silver/Grey ~ 98 Camry V6 ~ 97 Camry I4 ~ 97 Mazda 626 I4 ~ 93 Sentra SE-R ~ 88 Toyota Truck I4 |
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02-25-2008, 08:00 AM
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Registered
Join Date: Dec 2007
Posts: 25
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I do 100 miles a day
  So 50 miles each way to the office on the interstate. For almost a year now. |
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02-25-2008, 07:35 PM
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1997 BMW M3 3.2L I6
