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Re: Oil recommendations for HD portable generator [Re: NWGuy] #5337113 01/31/20 09:14 AM
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Nitronoise Offline
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I have been running 5w30 full synthetic quaker state QSUD in my gen sets with Briggs motors for years biggest run was a full week in 80-85 degrees F only stopping to refuel
My small one is 10 years old and still starts on the second pull m once a month

I do run them once a month for 15 to 20 minutes


07 Ford Freestyle 166K
06 Honda Acord EX 133K
02 Ford Tarus 123K
00 Buick Regal SC 144K
95 Goldwing 28K

Re: Oil recommendations for HD portable generator [Re: Nitronoise] #5337133 01/31/20 09:38 AM
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ARCOgraphite Online Content
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Originally Posted by Nitronoise
I have been running 5w30 full synthetic quaker state QSUD in my gen sets with Briggs motors for years biggest run was a full week in 80-85 degrees F only stopping to refuel
My small one is 10 years old and still starts on the second pull m once a month

I do run them once a month for 15 to 20 minutes


What engine? My generac 5500 (?) has some "chinese honda copy" 390cc OHV
and that would start knocking with a PCMO oil when hot.

Are you sensitive to engine racket and performance devolving when overstressed?


2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter
Re: Oil recommendations for HD portable generator [Re: NWGuy] #5337149 01/31/20 09:53 AM
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nascarnation Offline
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In my experience none of this OPE stuff is developed with synthetic oils and any of the syns you put in are a bonus.

The stuff I've had fail is mechanical like broken exhaust valves, con rods, et unrelated to lube.

Re: Oil recommendations for HD portable generator [Re: NWGuy] #5337359 01/31/20 02:06 PM
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spasm3 Offline
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I've been running amsoil HDD 5w30. I have some amsoil ame 15w40 , but I worry about pull starting that in winter weather.


13 elantra 81k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 17000 miles synpwr 5w30
Re: Oil recommendations for HD portable generator [Re: ARCOgraphite] #5337574 01/31/20 06:41 PM
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Kamele0N Offline
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Originally Posted by ARCOgraphite
Originally Posted by Nitronoise

My small one is 10 years old and still starts on the second pull m once a month


What engine? My generac 5500 (?) has some "chinese honda copy" 390cc OHV
and that would start knocking with a PCMO oil when hot.


You both need to adjust valves on your generator(s)....


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: Oil recommendations for HD portable generator [Re: Nitronoise] #5337577 01/31/20 06:46 PM
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Originally Posted by ARCOgraphite
The suggestion of "run any 5w30 synthetic" is a "Fool's Choice"
I agree.

Originally Posted by Nitronoise
I have been running 5w30 full synthetic quaker state QSUD in my gen sets with Briggs motors for years biggest run was a full week in 80-85 degrees F only stopping to refuel.
I am glad to hear that you have have had a long string of success with what you are doing here, but one of these days your luck may run out. There is a reason for Briggs recommending 15W-50 for commercial applications, and it's been discussed at length here before. That reason is HTHS viscosity. Generators running at 3600 RPM with a heavy load sounds like a commercial application to me.


'01 Volvo V70XC, 251k, 5W-30 M1 EP
'16 Accord, 50k, 0W-20 M1 EP
Re: Oil recommendations for HD portable generator [Re: NWGuy] #5337621 01/31/20 07:35 PM
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tundraotto Online Content
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I'd (and do) run a 15W-40 HDEO on all ope....maybe if I had a snowblower, I would use a 5W-40 HDEO. It's cheap and I only have high ambient temperature and air cooled OPE to run so I run an affordable robust oil that I can afford to change every season at least once..

Re: Oil recommendations for HD portable generator [Re: tundraotto] #5337759 01/31/20 10:37 PM
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Originally Posted by tundraotto
I'd (and do) run a 15W-40 HDEO on all ope....maybe if I had a snowblower, I would use a 5W-40 HDEO. It's cheap and I only have high ambient temperature and air cooled OPE to run so I run an affordable robust oil that I can afford to change every season at least once..
That's probably great advice for most OPE in hotter climates, but you would change your mind in a heartbeat if you ever had to pull start a snowblower with that oil at or below freezing. I had been running 15W-40 in my recently retired leaf vacuum with a 4.5 HP Tecuseh motor. Starting that thing below 40 degrees using that oil was challenging to say the least. I don't even want to think about pull starting a piece of OPE at 25 degrees with 15W-40 oil in the sump.

Re: Oil recommendations for HD portable generator [Re: NWGuy] #5337843 02/01/20 01:56 AM
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GMBoy Offline
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I've run Mobil 1 10w/30 in my portable generator, my RV generator and all my OPE - no noise, no issues and I change yearly.

Re: Oil recommendations for HD portable generator [Re: Kamele0N] #5337961 02/01/20 09:15 AM
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ARCOgraphite Online Content
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Originally Posted by Kamele0N
Originally Posted by ARCOgraphite
Originally Posted by Nitronoise

My small one is 10 years old and still starts on the second pull m once a month


What engine? My generac 5500 (?) has some "chinese honda copy" 390cc OHV
and that would start knocking with a PCMO oil when hot.


You both need to adjust valves on your generator(s)....


Valves get tighter when hot and no loss of power so ... why Mr. K ?

I did have to adjust the valves on my new Toro 252cc snowthrower after about only 10 hours.

The ex. valve lash measured only 0.10mm and it should be 0.20mm ( 0.0008") !

I knew it needed something as The engine was spitting and popping when hot, had very loud exhaust and lost power


2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter
Re: Oil recommendations for HD portable generator [Re: NWGuy] #5338318 02/01/20 05:29 PM
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Kamele0N Offline
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In your case I tought knocking means spitting....

Since in cars with EFI you have "knock sensor" wich controls pre-ignition


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: Oil recommendations for HD portable generator [Re: NWGuy] #5338459 02/01/20 08:43 PM
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spasm3 Offline
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Anyone see a downside to running amsoil HDD?


13 elantra 81k 5w30 synpwr
03 chevy avalanche 83k synpwr 5w30
17 mazda cx-5 17000 miles synpwr 5w30
Re: Oil recommendations for HD portable generator [Re: NWGuy] #5342713 02/06/20 02:35 PM
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repairman54 Offline
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Full synth and adjust weight to operating temps. . -25f starts you better have a 0-30w in it, I've lifted the 7.5k off the ground with the recoil in -15 temps, no way it was starting with 5-30w in it. My Generac 10 kw gets 0-30w now to handle those temps along with a sump heater and a battery heater on a thermostat to kick on at 20f . My old Craftsman BS now lives in a slightly warmer climate and is on 5-30w diet to deal with 10f to 90f temps. .


John
Anything you say can & will be misquoted & used against you
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Re: Oil recommendations for HD portable generator [Re: spasm3] #5344098 02/07/20 09:51 PM
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cronk Online Content
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Originally Posted by spasm3
Anyone see a downside to running amsoil HDD?

Seems like a good choice.
I have ran Amsoil ase 10w30 small engine in my generators for 10+ years as well.
Amsoil also just came out with a 5w30 small engine oil for cold weather use.


2008 Ford F350
2008 Kia Spectra
2011 Nissan Quest
1986 Pontiac Trans Am
1940 Ford 9N Tractor
Amsoil lubes and filters!
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