What Boat Captains and Marine Surveyors Should Know about Oils and Oil Analysis

Here’s a paper written especially for Boat Captains and Marine Surveyors that explains how marine oils degrade over time due to oxidation, viscosity change and/or  contamination from sea water, fresh water, fuel or coolant.

This paper is intended to help you increase your understanding of marine lubricants and how to apply oil analysis in detecting potential wear problems.    Marine Surveyors should view oil analysis as an additional diagnostic tool for their toolboxes.    To boat owners and boat captains, periodic oil analysis means increased protection and added savings for your marine equipment.      Oil analysis can tell you if you’re running your marine lubricants too long or if you’re changing them to frequently.

BOTTOM LINE:   Marine oil analysis keeps your boat on the go and as “worry free” as possible.


Read the paper here:    What Boat Captains and Marine Surveyors Should Know About Oils and Oil Analysis (Rev C)

Published by

Thomas Johnson

Tom Johnson is part owner and President of JG Lubricant Services, LLC. He holds a Bachelor of Science degree in Mechanical Engineering Technology from Purdue University and has over 30 years engineering experience. Prior to forming JG Lubricant Services, Tom acted as the Transmission Fluids Engineer for Allison Transmission for the last 20 years before his retirement in 2009. While in this position, Tom worked with most of the global oil and additive companies. Tom wrote all of Allison’s current lubricant specifications (including the ground breaking TES-295 specification). He directed and managed the testing and approval of hundreds of transmission fluid formulations for Allison Transmission and served as a key member of the GM Automatic Transmission Fluid Committee. Tom was also a key member of the Engine Oil Review Committee for the SAE Performance Review Institute and participated on a multi-OEM panel to review and approve engine oils to US Army specifications. Tom worked closely with the US Army Tank Automotive Command to review military specification oils for use in US Army tactical and combat wheeled and track laying vehicles.