Quote:
Originally Posted by phil47
I'm wondering what a short vs adequately long trip is? My commute to work is around 20 km each way (~12 miles) with a couple short sprints up to 80 or 100 kph but the majority around 50 kph. Takes around 30-45 minutes. Longer and higher speed trips are irregular...maybe once a week or every 2 weeks. I haven't run into this issue yet, and the inside of my oil filler cap has ALWAYS appeared clean (no evidence of emulsion). Car is typically in a heated garage and heated underground parking. Opinions on whether I am likely in the clear?  |
There is no correct answer, and I am reluctant to say if that is fine or not, because I wouldn't look forward to hearing about you having a failure at some point in the future. No crystal ball here. If it was me, and I hadn't had a problem up to now, and I didn't see any paste under the oil cap, then I would tend to relax a little. My E53 3.0 had a similar run to you, 30 km each way, mainly 60 kph, garages only indirectly heated, and I never got any paste under the oil cap. A 318i on the same route did get the paste under the oil cap, simply because it was a smaller engine, more efficient on fuel, thus less heat. A hot oil change when it did build up kept it under control.
Even if there was no buildup, after 100,000 km or at Inspection II I would inspect the CCV and expect to replace some hoses because the hoses can go soft with age, whether or not the valve is freezing up.
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2007 X3 3.0si, 6 MT, Premium, White
Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
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2002 325xi 5 MT, Steel Grey
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