Join Date: Jun 2006
Location: San Marcos, CA / Tucson, AZ
Re: Does Oil go "bad" if it's in the engine for long period of time but not driven?
I would change oil every 5000 miles or 6 months, which ever comes first. But with you driving so little... you probably drive a lot of short distances in the city so you should change it every 3000 miles or 5-6 months. With driving short distances the oil never warms up fully so moisture and fuel will dilute the oil, which lowers the protection the oil provide.
08 CWP Mz3 S Sport 2.3l 4dr
Current mods:F2 turbo kit, F2 exhaust, F2 BSD, F2 oil baffle kit, F2 rear swaybar, N9TH Racing Trunk Brace, KW V2 Coilovers, SPC Rear Camber Links, Medieval RMM, WORKS RSV with Dunlop Direzza Sport Z1 Star Specs, FI Grounding Kit, RKM STS, XenonExpert pedals, 15% tint, 35w DDM 6000K HIDs, Interior LEDs, Lamin-X Yellow Fogs, Sharkfin Antenna