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Hmmm....Would this cause my drastic MPG decrease? Posted by MI-Roger [Email] ![]() ![]() In Reply to: Air Filters, PhilB, Tue, 11 Dec 2007 11:16:06 Members do not see ads below this line. - Help Keep This Site Online - Signup |
I installed a S&B oil cloth filter in the stock airbox of my 9-5 a while ago, maybe just over a year now.
I have seen my MPG steadily decrease over the summer, but even more noticeable now in the winter months. I know low temps will drop MPG, reformulated gasoline (both winter blend and use of ethanol verus the old MTBE) will drop MPG, but I have dropped from 30+ MPG in past Spring/Fall seasons to only 27MPG this year. Likewise, my winter MPG is now down to just 25MPG or below.
Yeah, the car also has over 213,000 miles so that may have an impact too, but the MPG decrease has been a fairly recent sudden event and not a long term gradual decline as miles accumulate.
Maybe I need to replace the filter. Maybe the MAF sensor too as it is still original.
posted by 198.208.25...
_______________________________________ Saabs owned: 2008 9-5 Aero Sedan, sold at 227K miles 2006 9-3SC 2.0T - Wife's daily driver 2000 Viggen Convertible - Sold May, 2022 1964 Quantum IV Formula Car - Retirement project 2000 9-5lpt Sedan, sold at 318K miles
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