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Re: How should I choose portable generator? [Re: Lenny5160] #4521959 09/21/17 08:03 AM
Joined: Apr 2009
Posts: 2,933
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boraticus Offline
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My EF2000is used approx. 2 oz (60 ml) of oil every 30 hours or so for the first 900 hours of operation.

As the hours accumulated, I noticed that sometimes, oil consumption would be minimal then on the next inspection, it would be back up.

Prior to accumulation of say, 700 hours or so, the oil consumption was consistently high by my standards. Once the engine got into the higher hours of use, it began to fall off and by the time it hit 900 hours, oil consumption had dropped significantly. It's now to the point that it may use only a little over 2 oz. in a 100 hour run, which is the oil change interval number.

I last did an oil change a couple days ago and the used oil (Shell Rotella blend 15/40-10W30 - 50-50) was only slightly darker than fresh oil. It's amazingly clean for used oil. I suspect that the used oil probably had plenty of service life left in it. However, at only .4 liter for a fresh fill, no need pushing it.

Re: How should I choose portable generator? [Re: Lenny5160] #4521974 09/21/17 08:20 AM
Joined: Apr 2009
Posts: 2,933
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boraticus Offline
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My EF2000is used approx. 2 oz (60 ml) of oil every 30 hours or so for the first 900 hours of operation.

As the hours accumulated, I noticed that sometimes, oil consumption would be minimal then on the next inspection, it would be back up.

Prior to accumulation of say, 700 hours or so, the oil consumption was consistently high by my standards. Once the engine got into the higher hours of use, it began to fall off and by the time it hit 900 hours, oil consumption had dropped significantly. It's now to the point that it may use only a little over 2 oz. in a 100 hour run, which is the oil change interval number.

I last did an oil change a couple days ago and the used oil (Shell Rotella blend 15/40-10W30 - 50-50) was only slightly darker than fresh oil. It's amazingly clean for used oil. I suspect that the used oil probably had plenty of service life left in it. However, at only .4 liter for a fresh fill, no need pushing it.

I suspect that despite multiple light load - heavy load break in procedures, the engine took much longer to actually break in under relatively light load continuous operation. My usual load is probably less than 500 watts with occasional heavy loading when operating things like a microwave oven or medium load power tools.

It would appear that due to the stubborn resistance to breaking in, the components are likely very durable. Which in turn would lead me to believe that this engine is designed and built for long service life.

My fears are that from reports I've read regarding Chinese versions of these generators, the above qualities may very well be compromised by Yamaha's choice to farm out the construction of these generators to China. I've yet to see anything positive from farming out Japanese manufacturing to China.

Re: How should I choose portable generator? [Re: linjiawen] #5006554 02/10/19 09:44 AM
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cronk Offline
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To recommend a generator, the op needs to provide a lot more info.
That electric devices are you planning to run with the generator, both camping and at home?
Is noise a consideration?
Are we tent camping or rv camping with ac, microwave etc.


2008 Ford F350
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1986 Pontiac Trans Am
1940 Ford 9N Tractor
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Re: How should I choose portable generator? [Re: linjiawen] #5007256 02/10/19 07:20 PM
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Donald Offline
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I am not sure a generator for camping will be the same as one for home emergency use. Two way different sets of electric loads.

As others have said you need to get a list of loads that will be powered by a generator. If motors then a starting and running load. Can you stagger starting loads? Like turn on refrig, then turn on freezer for example


2015 Subaru Forester 2.5 engine/CVT
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Re: How should I choose portable generator? [Re: linjiawen] #5007789 02/11/19 10:57 AM
Joined: Jan 2015
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ragtoplvr Offline
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The Joplin tornado tore up a lot of infrastructure. There were lucky people that were just without electricity for a few days to a few weeks. A big gasoline generator will suck down 15 gallons a day. Gas was over $3.00 a gallon then, it was $45 a day for the big genny, Insurance does not cover that. If you have a way to stagger loads and can live with only a small window airconditoner in one room and then fans for the rest of the house a 3500 watt unit can get you by. Mine used just over 5 gallons a day.. I changed the oil every 2 days (50 hours) used Tropartic and never had a issue. Electric hot water heater is a no go unless you have the ability to wire it for 110V and it will let you. Then you have VERY limited hot water.

Rod

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