[blue2000s]

Originally Posted by MNBoxster

Hi,

One additional thing. Several of the parts and systems on the car have both a Time and Mileage Service Interval, whichever comes 1st.

The Tires s/b every 4-5 yrs. max, regardless of mileage or tread depth. Brake Fluid s/b every 2 years. Coolant every 150k mi. or 5 years. Serpentine Belt every 60k mi. or 5 years, Spark Plugs every 30k mi. or 4 years (Max, I prefer annually or 2 yrs. Max), Engine Oil (Porsche says every 20k mi., but most think that is too long an interval) 7500 mi. or annually. Also, if operating in dusty or excessively warm environments, Air Filter and Oil change intervals s/b shortened as well. Hope this helps...

Happy Motoring!... Jim'99

Where are you getting your information on tire life?