Terry, as Etec says I think your running the motor to hard,I travel out at about 4000 and do about 18 -20 knots, and average 1.33 litres per nm which equates to 6 mpg, and of course does'nt use any oil as its a Mariner 115hp 4 stroke.
Cheers Ian
Optimax outboards and Oil consumption
G
I have now had my Optimax 115 for a few months and have done about 65 hours on it. I knew the oil consumption was going to be high for the first 20 hours, which it was :sad:, but now that it is well run in I am still using between 2-3 litres for every 80-100 litres of fuel.
At £43 a can (Mailspeed Marine have now realised they were doing it too cheap at £27:thumbdown) this adds quite a bit to the running costs.
Does the consumption sound right or should I get it checked out?
I generally run at between 4500 and 5000 rpm while travelling and then around 2500-3000 rpm to get back to the start of the next drift when wrecking. If conditions are a bit choppy then I will usually keep it to around 3500 rpm for travelling.
Nothing seems to make any difference to how much oil I use.
I had an ETEC a few years ago and kept it for about a year. I only had to refill the oil once, just before I sold it and was expecting the Optimax to be similar.
I would be interested to hear what consumption others are getting.
The fuel consumption is around 3.5 NM per gallon so a bit better than the 100 mariner 4 stroke:thumbs:.
At £43 a can (Mailspeed Marine have now realised they were doing it too cheap at £27:thumbdown) this adds quite a bit to the running costs.
Does the consumption sound right or should I get it checked out?
I generally run at between 4500 and 5000 rpm while travelling and then around 2500-3000 rpm to get back to the start of the next drift when wrecking. If conditions are a bit choppy then I will usually keep it to around 3500 rpm for travelling.
Nothing seems to make any difference to how much oil I use.
I had an ETEC a few years ago and kept it for about a year. I only had to refill the oil once, just before I sold it and was expecting the Optimax to be similar.
I would be interested to hear what consumption others are getting.
The fuel consumption is around 3.5 NM per gallon so a bit better than the 100 mariner 4 stroke:thumbs:.
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Cheers Ian
Al ,sorry but this is quite wrong, the service schedule as detailed in the manual that came with my Mariner 115hp 4 stroke clearly states that the service interval is 100 hours or yearly, I do'nt care what Barrus say, they do'nt manufacture the engines , Brunswick corporation doTerry, you should have had your first service by now, well, if you've done 65 hours, it should have been done 45 hours ago, so if the oil ratio is set for a running in period, it should have been adjusted at that first service, check they did it on that service, if not, get em' to sort it out.
If you've missed that service, you probably now have no 5 year warranty (possibly no warranty at all), Merc/Mariner are pretty hot on that first service being done (as are most manufacturers) and I am talking from experience, not guessing, going on hearsay or some bloke said so, as I "again" spoke to the head of servicing at Barrus regarding this, due to anomolies with my paperwork.
Anyway, that aside, give Tim Bennet, Barrus Service Manager a ring on 01869 363636, to check the above, if need be, or run those figures by him, i'm sure he'll give you the "correct" info you need.
AL ..
I think Barrus are spreading this myth about a 20 hour service in an attempt to generate work for their dealers!! if necessary I shall scan the page, and post it on here for the whole world to see, but I cannot be bothered at the moment
Cheers Ian
MAINTENANCE
36
Inspection and Maintenance Schedule
BEFORE EACH USE
Check engine oil level. See Fuel and Oil - Checking and Adding Engine Oil.
Check that lanyard stop switch stops the engine.
Visually inspect the fuel system for deterioration or leaks.
Check outboard for tightness on transom.
Check steering system for binding or loose components.
Check propeller blades for damage.
AFTER EACH USE
Flush out the outboard cooling system if operating in salt or polluted water. See Flushing the Cooling
System.
Wash off all salt deposits and flush out the exhaust outlet of the propeller and gearcase with fresh water
if operating in saltwater.
If operating in saltwater, inspect the powerhead and powerhead components for salt build-up. See
Cleaning Care for the Powerhead (Saltwater Use).
EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER OCCURS
FIRST
Change engine oil and replace the oil filter. The oil should be changed more often when the engine is
operated under adverse conditions such as extended trolling. See Changing Engine Oil.
Inspect the thermostat visually for corrosion and or for a broken spring. Make sure the thermostat closes
completely at room temperature.These items should be serviced by an authorized dealer.
Check low pressure fuel filter for contaminants. Replace filter if required. See Fuel System.
Check corrosion control anodes. Check more frequently when used in saltwater. See Corrosion Control
Anode.
Drain and replace gearcase lubricant. See Gearcase Lubrication.
Check power trim fluid. See Checking Power Trim Fluid.
Inspect battery. See Battery Inspection.
Saltwater usage. Remove and inspect spark plugs for corrosion and replace spark plugs as necessary.
Apply a thin coating of Anti-Seize Compound only on threads of spark plug prior to installation. See Spark
Plug Inspection and Replacement.
Tube Ref No. Description Where Used Part No.
81 Anti-Seize Compound Spark plug threads 92-881091K1
Check wiring and connectors.
Check tightness of bolts, nuts, and other fasteners.
Check cowl seals to make sure seals are intact and not damaged.
Check internal cowl sound reduction foam (if equipped) to make sure foam is intact and not damaged.
Check that the intake silencer (if equipped) is in place.
Check that the idle relief muffler (if equipped) is in place.
Check for loose hose clamps and rubber boots (if equipped) on the air intake assembly.
EVERY 300 HOURS OF USE OR THREE YEARS
Replace water pump impeller (more often if overheating occurs or reduced water pressure is
noted).These items should be serviced by an authorized dealer.
Replace high pressure in-line fuel filter.These items should be serviced by an authorized dealer.
I have added this because it clearly clarifies the service interval of Mercury/Mariner outboards!!
Cheers Ian
36
Inspection and Maintenance Schedule
BEFORE EACH USE
Check engine oil level. See Fuel and Oil - Checking and Adding Engine Oil.
Check that lanyard stop switch stops the engine.
Visually inspect the fuel system for deterioration or leaks.
Check outboard for tightness on transom.
Check steering system for binding or loose components.
Check propeller blades for damage.
AFTER EACH USE
Flush out the outboard cooling system if operating in salt or polluted water. See Flushing the Cooling
System.
Wash off all salt deposits and flush out the exhaust outlet of the propeller and gearcase with fresh water
if operating in saltwater.
If operating in saltwater, inspect the powerhead and powerhead components for salt build-up. See
Cleaning Care for the Powerhead (Saltwater Use).
EVERY 100 HOURS OF USE OR ONCE YEARLY, WHICHEVER OCCURS
FIRST
Change engine oil and replace the oil filter. The oil should be changed more often when the engine is
operated under adverse conditions such as extended trolling. See Changing Engine Oil.
Inspect the thermostat visually for corrosion and or for a broken spring. Make sure the thermostat closes
completely at room temperature.These items should be serviced by an authorized dealer.
Check low pressure fuel filter for contaminants. Replace filter if required. See Fuel System.
Check corrosion control anodes. Check more frequently when used in saltwater. See Corrosion Control
Anode.
Drain and replace gearcase lubricant. See Gearcase Lubrication.
Check power trim fluid. See Checking Power Trim Fluid.
Inspect battery. See Battery Inspection.
Saltwater usage. Remove and inspect spark plugs for corrosion and replace spark plugs as necessary.
Apply a thin coating of Anti-Seize Compound only on threads of spark plug prior to installation. See Spark
Plug Inspection and Replacement.
Tube Ref No. Description Where Used Part No.
81 Anti-Seize Compound Spark plug threads 92-881091K1
Check wiring and connectors.
Check tightness of bolts, nuts, and other fasteners.
Check cowl seals to make sure seals are intact and not damaged.
Check internal cowl sound reduction foam (if equipped) to make sure foam is intact and not damaged.
Check that the intake silencer (if equipped) is in place.
Check that the idle relief muffler (if equipped) is in place.
Check for loose hose clamps and rubber boots (if equipped) on the air intake assembly.
EVERY 300 HOURS OF USE OR THREE YEARS
Replace water pump impeller (more often if overheating occurs or reduced water pressure is
noted).These items should be serviced by an authorized dealer.
Replace high pressure in-line fuel filter.These items should be serviced by an authorized dealer.
I have added this because it clearly clarifies the service interval of Mercury/Mariner outboards!!
Cheers Ian
Paul
My engine was purchased brand new April 2008, and I believe had a 5 year warranty,this was plastered all over the outboard brochures, and encouraged me to buy the boat/package although this is contary to what Brunswick say in the doc supplied by Al, that this was'nt available till 1/6/08, anyway I stick by what my manual(supplied with motor) says 100 hours or 1 year, not some document, obtained by google now doubt, after all I would only take notice of documentation supplied with outboard
Cheers Ian
My engine was purchased brand new April 2008, and I believe had a 5 year warranty,this was plastered all over the outboard brochures, and encouraged me to buy the boat/package although this is contary to what Brunswick say in the doc supplied by Al, that this was'nt available till 1/6/08, anyway I stick by what my manual(supplied with motor) says 100 hours or 1 year, not some document, obtained by google now doubt, after all I would only take notice of documentation supplied with outboard
Cheers Ian
Al you are probably quite correct, but the simple fact is that I was sold an outboard by a Mariner dealer, and was not told of any strings attached to the warranty, be it 3 years or 5 years, plain and simple my engine needs servicing every 100 hours or yearly whichever is soonest, as confirmed in manual, so me personally I have had servicing carried out to the correct schedule,whether terry has I cannot comment :wallbash::wallbash::wallbash:I have the same CD Ian and have read it already.
The manuals contained on my CD ONLY relate to 4 stroke outboards, so don't cover Terrys 2 stroke, but I dare say his is very similar.
The point you're missing, is if you would like the "FIVE YEAR OPTIONAL EXTENDED WARRANTY" then you need to follow the stipulations regarding servicing to qualify for it, detailed in the .PDF file, located on Brunswick marines website I supplied the link for, why not read it??
It does seem that Terry's excessive 2 stroke oil consumption isn't due to not being adjusted at a 20 hour service - I didn't know if that was the case and said so in my original post.
However, it does seem to me, based on much reading of Brunswick Marines paperwork and many phone calls to different dealers and Barrus, that Terry's and possibly yours and many others 5 year "optional extended" warranties have been voided by not conforming to the rules, maybe that doesn't bother people, it does me though, I wanted 5 years worry free, not 2 years.
Heres a paste of something you may have missed on the CD:-
"DURATION OF COVERAGE: This Limited Warranty provides coverage for two (2) years from the date the product is first sold to a recreational use retail purchaser, or the
date on which the product is first put into service, whichever occurs first.
Regards.
AL ..
Cheers Ian
Al by the way I am " not arguing", I am merely stating facts which you do not agree with, I for one will be another addition to the growing list of ex users of this site
Paul you do'nt get a service book anymore, when the motor is serviced Mariners/mercury database is updated via pc from the servicing dealer against engine number for all work carried outIn that case, perhaps you should also stick by what your manual says regarding the length of warranty, ie : you have 2 years and not the 5 years you thought you had.
The service document Al posted is on the Brunswick website.
You still didn't tell me if you got a service book when you bought the engine and if so, who printed it ?
Cheers Ian
1 - 6 of 19 Posts
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