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Using calculation method, I typically get about 11-13 mpg with mostly city/suburban stop light driving, generally under 3.5K rpm as well, and only in M Mode occasionally. At about 67K miles now, air filter is clean/new, spark plugs and thermostat are new since early 2019, O2 sensors and injectors are original AFAIK, and coils are original except one, per prior records. Bank 2 TA replaced in Oct 2017, just replaced bank 1 TA a week ago and the fuel breather valve as preventative maintenance, though no indication the fuel breather wasn't working.
I wonder if I should replace O2 sensors anyway?
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2012 E92 M3 | ZCP | DCT | Space Grey Metallic | Black Novillo | BE/ARP | MPE V2 | do88 DCT cooler | Vorschlag | Solid SF Bushings | BMW CF Rear Spoiler, RW Carbon Diffuser, CF Front Splitters | DTEC 160W Angel Eyes
Last edited by PAM3Guy; 09-03-2020 at 12:03 PM..
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