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28 February 2012, 17:40
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#1
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Member
Country: UK - England
Town: Thornaby
Boat name: Storm
Make: Humber Ocean Pro 6.5
Length: 6m +
Engine: Suzuki DF 150
Join Date: Jan 2008
Posts: 355
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Gear box oil
whats the difference between Evinrudes gear box oil and the cheaper makes ? its for an Evinrude ficht can anyone recommend one? (thats cheaper than evinrude's) ??
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28 February 2012, 17:49
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#2
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Member
Country: UK - England
Town: Sussex
Boat name: Bombard
Make: Aerotec 380
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 3,401
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Like most engine/vehicle companies none of them 'make' oil they just stick their name on an oil company's selected product. I should think any reasonable standard EP90 gear oil will be fine. I have gallons of stuff at home for my Landy's and use that in the Tohatsu.
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28 February 2012, 17:54
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#3
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Member
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 100 Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,175
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Millers oils Brighouse
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28 February 2012, 20:42
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#4
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RIBnet admin team
Country: UK - England
Town: The wilds of Wiltshire
Boat name: Dominator
Make: SR5.4
Length: 7m +
Engine: Yam 85
MMSI: 235055163
Join Date: Jul 2005
Posts: 13,054
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Quote:
Originally Posted by Max...
Like most engine/vehicle companies none of them 'make' oil they just stick their name on an oil company's selected product. I should think any reasonable standard EP90 gear oil will be fine. I have gallons of stuff at home for my Landy's and use that in the Tohatsu.
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No it's not. Use proper marine grade gear oil. It's got emulsifiers in to take up any slight water ingress if the seals fail, preventing internal corrosion.
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28 February 2012, 21:42
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#5
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Member
Country: UK - England
Town: Sussex
Boat name: Bombard
Make: Aerotec 380
Length: 3m +
Engine: Mercury Mariner 15hp
Join Date: Jul 2010
Posts: 3,401
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Happy to be proved wrong but never heard that before - Tohatsu's service manual states 'GL5, SAE 90' - ie bog standard gear oil. As I say exactly the same stuff that goes in the Landy t'fer box, diffs, swivels etc and in many other automotive/gear applications.
Not sure how much protection the emulsifiers could offer but they would be useful in a Landy - one off-roading session with hot diffs entering deep water and the water gets sucked in past the seals leaving mayonaise for lube...
Oil is always an emotive subject and as anyone who ever ventures onto various Landy forums will know there is more b****x talked about oil than just about anything and I guess it's probably the same for other popular marques, motorbikes, etc.
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28 February 2012, 22:01
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#6
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Member
Country: UK - England
Town: Wakefield
Boat name: Bouncer
Make: Redbay Stormforce
Length: 6m +
Engine: 2x Honda 100 Hp
MMSI: 235025718
Join Date: Jun 2009
Posts: 4,175
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29 February 2012, 07:40
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#7
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Member
Country: UK - England
Town: New Milton
Boat name: Jianna
Make: Osprey
Length: 6m +
Engine: 200 E-TEC
MMSI: 235076954
Join Date: Sep 2004
Posts: 1,940
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Quote:
Originally Posted by discomick
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Interesting presentation on Bio fuels, I won't be using them anytime soon, but I could not find anything relevant to marine gearboxes - have I missed something?
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Ian
Dust creation specialist
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29 February 2012, 10:34
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#8
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Member
Country: UK - England
Town: bicester
Length: no boat
Engine: outboard only
Join Date: Feb 2009
Posts: 913
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use a marine gear oil as it has additives that in the event of water ingression it keeps the water from metal parts, thats the idea anyway, sometimes works sometimes dont work.Which oil is best? I dont know use what ever you trust/like
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29 February 2012, 15:19
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#9
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Member
Country: USA
Town: Seattle
Boat name: Water Dog
Make: Polaris
Length: 4m +
Engine: Yamaha 60hp
Join Date: Apr 2007
Posts: 1,152
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Quote:
Originally Posted by blueboy758
whats the difference between Evinrudes gear box oil and the cheaper makes ? its for an Evinrude ficht can anyone recommend one? (thats cheaper than evinrude's) ??
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I end up using the manufacturers since its only a few dollars more than cheaper stuff from the autoparts store. Is it exactly the same? I don't know but in the grand scheme of my boat costs its cheap to use the manufacturer speced oils.
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29 February 2012, 21:31
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#10
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Member
Country: UK - England
Town: bedford
Make: tornado
Length: 5m +
Engine: outboard 60hp merc
Join Date: Oct 2007
Posts: 328
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I have always used the OB OEM recommended oil and last year for the first time in 40yrs of boating experienced the milky oil that results from a leak. The oil drained out almost the colour of milk and when I stripped the gear box the metal parts were perfect. For what it costs I would use a marine spec product, although I have been tempted in the past to use that high spec racing low friction oil that was given etc.
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