I've been using 0w40 Mobil for 5 years and 40,000 miles on my '99 box. I bought it in 2011 with 66k on the clock and now it has 106. Hasn't blowed up yet! (KNOCK ON WOOD).
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'99 Boxster Artic Silver/Red
'14 Subaru Outback
'06 EG Classic
'05 Sportster
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