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W6745 Highway 106 Fort Atkinson WI 53538 us

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Patten's Marine 

COMMON MERCURY QUESTIONS


HOW OFTEN DO I NEED TO CHANGE THE OIL ON MY FOURSTROKE OR VERADO OUTBOARD ?

Every 100 hours or once yearly,whichever occurs first


WHAT SHOULD I DO TO PREPARE MY OUTBOARD ENGINE FOR OUT - OF - SEASON STORAGE OR PROLONGED STORAGE ?

The major consideration in preparing your outboard for storage is to protect it from rust,corrosion, and damage caused by freezing water that may be trapped in the engine. We recommend taking your engine to an authorized mercury dealer to perform the work. Damage from improper storage procedures is not covered under the mercury warranty. If you choose to perform the storage procedure, follow the storage procedure outlined in your Operation, Maintenance & Warranty manual


IS IT BETTER TO CHANGE MY ENGINE OIL/GEAR LUBE AT THE BEGINNING OR THE END OF SEASON ?

It is better to change the oil and gear lube at the end of season, prior to storage. Lubricants naturally accumulate moisture, combustion by-products and other contaminants during use. It can be detrimental to store an engine or drive with large amounts of these contaminants present.


SHOULD I USE PREMIUM BLEND OR HIGH PERFORMANCE GEAR LUBE IN MY STERNDRIVE ?

Mercury High Performance gear lube is recommended for use in all sterndrives


WHAT KIND OF SPARE PARTS SHOULD I CARRY ON MY BOAT ?

Some suggested items would include a floating prop wrench, a spare prop and attaching hardware, spark plugs, belt(s),oil,power trim fluid, gear lube, water separating fuel filter, and appropriate fuses.


WHAT ARE THE BENEFITS OF FOUR-STROKE OVER TWO-STROKE ?

Four-strokes have inherently cleaner running qualities over traditional two-strokes. They tend to have smooth and quiet operation, improved fuel efficiency, and don't smoke. These attributes provide consistent starting, better idling and trolling performance - and they reduce fuel consumption.


WHAT IS THE ADVANTAGE OF EFI VS CARBURETORS ?

Electronic Fuel Injection (EFI) technology provides precise metering of fuel to each cylinder, taking into account engine and ambient temperatures, atmospheric pressure, throttle position and boat load. The benefits include turn-key starting and smooth, trouble-free operation regardless of boating conditions. 


I JUST BOUGHT A NEW FOUR-STROKE TO REPLACE MY OLD TWO-STROKE. WHAT SHOULD I KNOW TO PROPERLY SERVICE THIS NEW FOUR-STROKE ?

The main items to service include checking and changing engine oil and proper lubrication as recommended by the Operations, Maintenance & Warranty manual. 



MY OUTBOARD DOES NOT OPERATE IN THE MAXIMUM RPM RANGE SHOWN IN MY OPERATIONS, MAINTENANCE & WARRANTY MANUAL. WHAT SHOULD I DO ?

Mercury four-stroke outboards 20 horsepower and below come standard with a propeller that should meet the needs of most applications. However, there may be situations in which this standard propeller does not provide the best performance. In such cases, the propeller may need to be changed to a higher or lower pitch propeller. Generally speaking, a higher pitch propeller will lower the maximum RPM that the engine will run at during full throttle, at the expense of a slightly higher top speed, while a lower pitch propeller has the opposite affect(higher maximum RPM , but slower speed). 


MY OUTBOARD HAS A DECAL ON THE SIDE THAT SAYS,"THIS SIDE UP". WHAT HAPPENS IF I LAY THE OUTBOARD ON THE WRONG SIDE BY ACCIDENT ?

The "this side up" decal should be facing up when the outboard is laid on its side. This position will minimize damage to the outboard and ensure that fluids do not leak out of the venting system. In most cases, the outboard will not incur permanent damage if it is accidentally laid on the wrong side for short periods of time.


WHY DOES MERCURY RECOMMEND 10W30 ENGINE OIL ON SMALL OUTBOARDS AND 25W40 ON LARGER OUTBOARDS ?

In fact, Mercury recommends 25W40 in all cases except the small outboards at low temperatures. At lower tempatures, oil tends to become thicker, resulting in more friction. On manual-start models, this additional friction can have an effect on the pull force required for starting the outboard. The 10W30 oil has less friction at cold temperatures and therefore results in a lower pull force for easier starting.


​I WANT TO TRANSPORT MY FOUR STROKE OUTBOARD IN MY TRUCK AFTER FISHING. WHAT IS THE RECOMMENDED WAY TO DO THIS ?

first, before removing the engine from the water, run the outboard out of fuel by disconnecting the fuel hose and letting the outboard run until it stops. Then, carefully remove the outboard from the boat and carefully lay it on its side, taking note of the "this side up" decal on the side of the cowling. On tiller models 8 horsepower and above, it is possible to rotate the tiller handle down for additional space.