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Hurricane Oil #5434846 05/21/20 07:27 AM
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henni Offline OP
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Ok, no such thing tired

We run Honda EM7000, EU6500, EU7000 inverters for a few hundred hours each summer during storms, hurricanes, power outages.

Normally these machines get whatever leftover 5W-xx, 10W-xx either syn or synblend is available with change (all have Qwikvalves for fast drains) at around 50 hours use or about 2 days non-stop. All run whole house systems, heat pumps, pool pumps, refrigerators, etc.

ECO mode is usually always ON and power use never exceeds 2800 watts at peak as we also switch our water heaters to 120v (3-way switch) which runs the 4,500 watt elements at 1,125 watts of power.

Any suggestions pro/con on using this oil at summer peak times ?
https://www.amazon.com/gp/product/B07L1F876S

Re: Hurricane Oil [Re: henni] #5434858 05/21/20 07:48 AM
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Miller88 Offline
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I seem to recall a post on here where someone was mentioning how neighbors were losing generator engines running 5w and 10w oils. If I was going to run an air cooled generator around the clock in a hot climate, I'd do one of the three: 15w-40, SAE40 or 20w-50. My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.


18 Forester 2.5I 6M
00 Jeep XJ
01 F-350 4x4 5M
Re: Hurricane Oil [Re: Miller88] #5434873 05/21/20 08:07 AM
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crainholio Offline
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Originally Posted by Miller88
My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.


Where are you buying your Mobil-1 20W-50 oil? All I see on the shelves is 15W-50.

Re: Hurricane Oil [Re: Miller88] #5434880 05/21/20 08:18 AM
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CT8 Online Content
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Originally Posted by Miller88
I seem to recall a post on here where someone was mentioning how neighbors were losing generator engines running 5w and 10w oils. If I was going to run an air cooled generator around the clock in a hot climate, I'd do one of the three: 15w-40, SAE40 or 20w-50. My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.

The oil gets consumed and the engine seize up.


2015 F150 2.7
2018 F350 6.2
Re: Hurricane Oil [Re: henni] #5434881 05/21/20 08:20 AM
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CT8 Online Content
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The HDEO oils syn or " conventional" are some of the best oils on the market. I would use 15W-40 with confidence.


2015 F150 2.7
2018 F350 6.2
Re: Hurricane Oil [Re: henni] #5434898 05/21/20 08:46 AM
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Ride_Red Offline
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After searching generator oil discussions for my own use, it seems that folks in hot southern states tend to use thicker oil than what is specified in the basic owner's manual.
In Michigan, I use Mobil 1 10W-30 in my Honda generators and lawnmower. Works great in my climate.
In Florida and Texas, it seems that the majority of people use 15W-40 HDEO, 15W-50 or 20W-50 for extended run use of generators and commercial lawn equipment.

The general failure mode (as I understand it) is that the generator consumes the thinner oil over time and the owner fails to check the oil level often enough, resulting in engine failure from lack of lubrication. Oil consumption appears to be much less with the thicker oils when operating an air-cooled engine in hot, humid, stagnant air.

15W-40 HDEO, Mobil 1 synthetic 15W-50 or Mobil 1 20W-50 synthetic motorcycle oil are mentioned a lot on this forum as favorites.


2019 4Runner 4.0L, 20K Mi, TGMO 0W-20, OEM
2010 CR-V 2.4L,100K Mi, M1 0W-20 AFE, M1-110
2009 T&C 3.8L, 130K Mi, ST 5W-20, Fram
2006 Cobalt 2.2L, 184K Mi, ST 5W-30 HM, Fram
Re: Hurricane Oil [Re: Ride_Red] #5434899 05/21/20 08:51 AM
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4WD Online Confused
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Running Delvac 1 5w40 in mine.
Find it a bit easier to tug the pull start (that takes a few pulls) compared to 15w40.

Re: Hurricane Oil [Re: henni] #5434903 05/21/20 08:56 AM
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mattwithcats Offline
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Shell Rotella T6 in 5W-40 has been my goto oil for generators, but they have a new 15W-40 full synthetic I have not tried yet...


2009 Smart Pure
Pennzoil Platinum Euro 0W-40, Wix XP 51356 filter, 45 mpg...
185/55R15 General HP tires, "H" speed rated, 44 psi (300 kpa)
Re: Hurricane Oil [Re: CT8] #5434907 05/21/20 09:02 AM
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Miller88 Offline
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Originally Posted by CT8
Originally Posted by Miller88
I seem to recall a post on here where someone was mentioning how neighbors were losing generator engines running 5w and 10w oils. If I was going to run an air cooled generator around the clock in a hot climate, I'd do one of the three: 15w-40, SAE40 or 20w-50. My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.

The oil gets consumed and the engine seize up.


I thought most of the generators had low oil switches that will kill the engine if oil goes too low?

Originally Posted by crainholio
Originally Posted by Miller88
My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.


Where are you buying your Mobil-1 20W-50 oil? All I see on the shelves is 15W-50.



I got it at Walmart a year or two ago for like $2 or $3 a quart.


18 Forester 2.5I 6M
00 Jeep XJ
01 F-350 4x4 5M
Re: Hurricane Oil [Re: Miller88] #5434938 05/21/20 09:37 AM
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Ride_Red Offline
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Originally Posted by Miller88
Originally Posted by CT8
Originally Posted by Miller88
I seem to recall a post on here where someone was mentioning how neighbors were losing generator engines running 5w and 10w oils. If I was going to run an air cooled generator around the clock in a hot climate, I'd do one of the three: 15w-40, SAE40 or 20w-50. My generator has Mobil1 20w-50 in it right now just in case we have another 20 hour power outage on a 90 degree day.

The oil gets consumed and the engine seize up.


I thought most of the generators had low oil switches that will kill the engine if oil goes too low?


Perhaps the combination of low oil (but not low enough to trip the sensor) and the high temperatures (causing a 10W-30 to be really thin) results in inadequate lubrication? Maybe less quantity of a thinner oil splashing around inside the engine causes the failure? shrug

In the reports I've read on BITOG, most failures were attributed to the combination of high heat & humidity & stagnant air, thin oil (xW-30) and the owner not checking the oil level (running the oil too low).


2019 4Runner 4.0L, 20K Mi, TGMO 0W-20, OEM
2010 CR-V 2.4L,100K Mi, M1 0W-20 AFE, M1-110
2009 T&C 3.8L, 130K Mi, ST 5W-20, Fram
2006 Cobalt 2.2L, 184K Mi, ST 5W-30 HM, Fram
Re: Hurricane Oil [Re: henni] #5435032 05/21/20 11:12 AM
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andyd Offline
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No clue of diesel oil vs PCMO. But judging just by viscosity, 15w40, 20w50 or straight weight 40w-60w 'cuz hurricane season in the Keys...V twin oil


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Hurricane Oil [Re: Ride_Red] #5435099 05/21/20 01:03 PM
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Miller88 Offline
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Originally Posted by Ride_Red

Perhaps the combination of low oil (but not low enough to trip the sensor) and the high temperatures (causing a 10W-30 to be really thin) results in inadequate lubrication? Maybe less quantity of a thinner oil splashing around inside the engine causes the failure? shrug

In the reports I've read on BITOG, most failures were attributed to the combination of high heat & humidity & stagnant air, thin oil (xW-30) and the owner not checking the oil level (running the oil too low).


That makes the most sense to me. I'm assuming if it's operating at 1/2 oil capacity or less, whatever is in there is going to get much , much warmer than if there was twice as much.


18 Forester 2.5I 6M
00 Jeep XJ
01 F-350 4x4 5M
Re: Hurricane Oil [Re: henni] #5435102 05/21/20 01:07 PM
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sloinker Offline
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Amsoil/Red Line/Ravenol.....PAO/POE for peace of mind.


'16 Tiguan TSI Vaico 5W40
'15 VW Golf TDI Red Line 5W30 Euro
'15 VW Golf Sportwagen TDI M1 ESP 5W30
'14 Dodge Grand Caravan 3.6 Valvoline 5W20 Semi Synthetic
'64 Plymouth Fury440 Pending
Re: Hurricane Oil [Re: henni] #5435110 05/21/20 01:15 PM
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Donald Offline
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We run Honda EM7000, EU6500, EU7000 inverters for a few hundred hours each summer

Wow. I thought my area in NY was bad with power outages (thanks NYSEG).

We are moving to DE soon (month or two) and down there they have between 0 and 1 outage a year. So I am thinking a generator may not be worth it even though I have one to bring. And the house has a heat pump so if I want to cover the heat/AC I need a HUGE generator,


2015 Ford F-250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Hurricane Oil [Re: Donald] #5435118 05/21/20 01:34 PM
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supton Online Content
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Originally Posted by Donald

Wow. I thought my area in NY was bad with power outages (thanks NYSEG).

We are moving to DE soon (month or two) and down there they have between 0 and 1 outage a year. So I am thinking a generator may not be worth it even though I have one to bring. And the house has a heat pump so if I want to cover the heat/AC I need a HUGE generator,

But if it's a warmer (or cooler?) climate, would you need to run heat/ac for the typical outage? A small generator might get you by for a few days.

if you're not going to be able to sell it for much, and it fits on the truck, I'd be tempted to keep it. If it's paid for itself already, one could argue either way, but if you have a hiding spot for it in the new home... it might have value "just in case".


2011 Toyota Camry, base, 2.5L/6MT, 205k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 159k, ours
1999 Toyota Camry LE, 2.2L/4AT, 225k, his
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