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Small 4 Cycle Engines, longevity tips #4109645 05/29/16 09:05 AM
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henni Offline OP
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We run several small 4 cycle engines within extended family. As an example, a Makita leaf blower. One thing learned over the years is to unconditionally change the engine oil each month for the VERY SMALL engines. On the Makitas, the quantity is exceedingly small, just 79.8 mL (milliliters) of 10w30.

Additionally, I often drain and add just a little new oil and drain it out immediately, without starting engine. Black carbon re-colors the new oil at such times.

Several of our Makita blowers are going strong at 7 to 8 years with daily use.


Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4109654 05/29/16 09:13 AM
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JC1 Offline
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Sounds like a good plan. What type of oil are you using?


2015 Grand Caravan SXT Plus 0w-20 Pennzoil Ultra/Fram Ultra Filter
1997 Honda Civic CX 5w-30 PPPP/Fram Ultra Filter
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4109655 05/29/16 09:16 AM
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Kamele0N Offline
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This....plus I add LM MoS2 in oil to all my OPE equipement...


2008 Toyota Yaris 1ND-TV 1.4 D4-D Tech9 5W30 C3 VW 504/507
1997 Toyota Landcruiser KZJ95 3.0 TD Elf Evolution NF900 5W40
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4109670 05/29/16 09:32 AM
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Boomer Offline
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Although it is a bigger engine, my 8 HP Tecumseh on my Lawn Boy Snowblower (aka Gilson) will be starting its 29th year this fall. It has many hundreds of hours on it but the oil has been religiously changed each spring (now using Mobil 1 5W-30), a new spark plug installed and storage fogging oil used over the summer. Last fall, it started on the first pull.


2019 VW Passat 2.0 liter gasoline DI engine, DI, 2,700 miles, Castrol Professional VW 508 0W-20
2017 VW Golf All Track 1.8 liter gas engine DI, 25,500 miles Castrol Professional VW 505 5W-40
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4109671 05/29/16 09:35 AM
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locomaster1969 Offline
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Sounds like your maintenance plan is working!!! My suggestion is to use Mobil 1 10/30 oil. It holds up to the heat much better than conventional oil. It also wont turn dark nearly as quick. Run the highest octane gas you can find and keep the air filter clean.


1986 Yamaha Venture
2000 Honda Accord V-6
2004 F-150
Small engine sales and repair
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4109764 05/29/16 12:19 PM
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Rob_Roy Offline
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I still prefer 2-stroke power for things like leaf blowers due to weight, but that Makita unit you have looks pretty nice.

What does Makita recommend for oil and service interval?


2016 Ford Expedition EL Platinum
2016 Ford Expedition XLT
1999 Ford F350, V10
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4110369 05/30/16 08:18 AM
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AnthemBassMan Offline
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I have a 24 year old Craftsman II push mower with a 3.5hp Tecumseh. I use only full synthetic oil in it and she still fires up on the first pull. Change the oil regularly and make sure the air filter is kept clean. If not abused, they should keep on running for years to come.

L8R,
Matt


2010 Chrysler Sebring Touring 191kmiles
Harvest King 5w30 full synthetic/Prime Guard POF2222 filter

2017 Hyundai Elantra SE 41.6k miles
Pennzoil Platinum 5w30/Fram Ultra XG9688 filter
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4110489 05/30/16 11:05 AM
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skyactiv Offline
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I have the CARB compliant emissions version of that leaf blower. I have had mine since 2010 and change the oil once a year. The unit has a two stage air-filter. I clean the foam once a year and have replaced the paper element a few times which is like $5.25. This blower starts on the first pull every time. I'm still on the original spark plug. I've even started it below freezing and it fired up on the first pull. Makita recommends 10W30. I use the oil shown in the pic which I obtained at Wal-Mart. This Makita blower is assembled in the USA somewhere in Georgia. I think the engine was designed or is made by Subaru Robin. I did lose a screw on the pull cord assembly box and the other three were loose. I found a metric replacement screw at a Sears Hardware store and dabbed a little blue thread lock on the four of them.







Wife: 15' Audi A4 quattro 6 speed manual
Sold: 13' VW GTI 3 door 6 speed manual
Me: 18' Elantra Sport 6 speed manual


Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4110802 05/30/16 06:22 PM
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henni Offline OP
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We have a few of the BHX2500CA models, also ran daily. Wonder what is different vs BHX2500. Externally they look identical.

Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4111157 05/31/16 06:41 AM
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Rand Offline
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CA Emmissions?


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4111940 05/31/16 11:18 PM
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oil pan 4 Offline
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I think you nailed it, I was going to say change the oil often.


Heavily modified 1984 6.5L suburban.
Re: Small 4 Cycle Engines, longevity tips [Re: henni] #4112072 06/01/16 05:39 AM
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dblshock Offline
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add some tcw-3 to the fuel.


05 Lexus GX470 175k
640:1 TCW-3
M1 0W40 XG-3614
Toyo Open Country H/T II

06 4Runner SR5 155k
640:1 TCW-3
M1 0W40 XG-3614
Falken Wildpeak AT3W
Re: Small 4 Cycle Engines, longevity tips [Re: dblshock] #4112120 06/01/16 06:38 AM
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spasm3 Online Happy
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Originally Posted By: dblshock
add some tcw-3 to the fuel.


+1
I use 1 ounce in 5 gallons for ope.


13 elantra 81k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 17000 miles synpwr 5w30
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