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Old 01-25-2005, 12:41 PM
Roadhawk Roadhawk is offline
BMW believer
Location: N. Virginia
 
Join Date: May 2004
Posts: 215
Mein Auto: 2004 330iZHP/2001 Audi S4
Sure synth oil won't break down as rapidly - but contaminents and such build up just the same and these can cause extra friction as well as gunky buildup and such. And 15K under ideal circumstances...if you drive hard and in dusty areas etc etc and if your engine has hot spots that can break even synthetic oil down prematurely...you just never know. I'm just not comfortable going 15K+ without changing out the oil - regardless. Its a peace of mind thing. Have 6700 miles on the Bimmer and already changed the oil/filter once. I change the oil in the Audi approx every 4-6K miles.
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Current Rides:

2004 330i Sedan - ZHP - Imola Red - alcantara, xenons, cold w/hole in roof, silver cube
2001 Audi S4 Avant - Nogaro Blue, St3, AWE ex/dp, Stptch brks, KW coilvrs, h-sport sways, EVO CAI, B & M ss, Clmster st3 LtwtFW - etc
1964 1/2 Mustang Conv - 289 4 bar V8 - Vintage Burgundy - unrestored/near mint - 53K miles
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