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Old 04-02-2014, 06:25 AM   #4
High Wire
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City: Cape May, NJ and Englewood, FL
Country: USA
Vessel Name: Irish Lady
Join Date: Dec 2007
Posts: 2,834
Cat 3116's use straight SAE 30 or 40 CF-4 or higher lube oil as per CAT. No multi-weight oils due to its Closed Crankcase Ventilation system.
See page 91 of https://parts.cat.com/wcs-static/pdfs/PEWJ0074-04.pdf
My friend has a pair of 300 hp versions with 2000+ hrs and they have been flawless since new.
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Archie
1984 Monk 36 Hull #46
Currently moored in Englewood, Florida.
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