Quote:
Originally Posted by Fyeganeh
...I've put on 1100 miles and using DT40 with a LN IMS double row ceramic replacement.
I think people are working on a 6 month 3000 or 5000 miles which ever comes first.
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The IMS Retrofit web page advises 6 months with DT40.
Service Intervals – IMS Retrofit:
Quote:
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Service interval recommendations are valid only with use of Joe Gibbs BR break in oil during the new IMS bearing break-in period of 200-400 miles along with use of an LN Engineering Spin-On Oil Filter Adapter with subsequent oil changes at 6 months or 5,000 miles using Joe Gibbs DT40. Severe service interval is 3 months or 3,000 miles.
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I agree with most of what has been posted here. With a 6 month oil change even if you are only at 1100 miles, you can't go wrong. Are you wasting good oil? Maybe, but it is the best recommendation for the longevity of your engine.
I change oil in the fall and in the spring. That said, I only did the 6 month change on 3 of the 4 Boxsters. I'm pretty sure the fourth, with 1k miles in 6 months will be fine 'till October.
My 'commute' takes 5 minutes. I almost always add on an extra 10 minutes with some twistys on the way home and make sure that each Boxster gets a good long drive each month. Short heat cycles ARE bad for engines. Warm up and cool down are also important.