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#4498478 - 08/26/17 09:13 AM mobil 1 Racing 4T
mobilaltima Offline


Registered: 02/03/11
Posts: 1148
Loc: Golden Meadow, LA
I have a few quarts of Mobil 1 Racing 4T 10W40, would it be ok to use in a Honda GX390 generator at 50 hr intervals? My only concern is its API SH.
_________________________
2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles

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#4498483 - 08/26/17 09:19 AM Re: mobil 1 Racing 4T [Re: mobilaltima]
FordCapriDriver Offline


Registered: 10/22/15
Posts: 2379
Loc: Balearic Islands , Spain
M1 Racing 4T is SH because it contains a fairly high concentration of ZDDP, around the 1300ppm mark i believe, but it's a very good oil, here in Europe we have Racing 4T 15W-50, no 10W-40, a friend of mine has run it in his TVR 3000M Race car ( Ford V6 with Triple Weber carbs ) and it is perfect and squeaky clean inside.
I think it should be perfectly fine.
_________________________
1975 Ford Capri II Ghia 3000 V6, - Valvoline VR1 20W-50
1988 Ford Escort MkIV 1.6 Xr3i Cabrio, - Shell Rimula R4X 15W-40 HDEO.

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#4498489 - 08/26/17 09:24 AM Re: mobil 1 Racing 4T [Re: mobilaltima]
mobilaltima Offline


Registered: 02/03/11
Posts: 1148
Loc: Golden Meadow, LA
Thanks. Ive always noticed what Cujet said about running 15W50 in these engines, I'm not doubting what he said at all, I'm just hesistant to run a 50 weight in it. Im sure a 40 will do fine, I usually run a 15W40 in it.
_________________________
2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles

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#4498504 - 08/26/17 09:34 AM Re: mobil 1 Racing 4T [Re: mobilaltima]
CT8 Offline


Registered: 10/09/14
Posts: 10963
Loc: Idaho
Originally Posted By: mobilaltima
Thanks. Ive always noticed what Cujet said about running 15W50 in these engines, I'm not doubting what he said at all, I'm just hesistant to run a m0 weight in it. Im sure a 40 will do fine, I usually run a 15W40 in it.
I use What ever Xw-40 HDEO I have left over from My wife's Ford diesel trucks oil change. 15W-50 works great in ope engines . I would run 15w-50 if I were to make a special trip buy an ope oil. Starting temps considered.

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#4498525 - 08/26/17 10:02 AM Re: mobil 1 Racing 4T [Re: mobilaltima]
mobilaltima Offline


Registered: 02/03/11
Posts: 1148
Loc: Golden Meadow, LA
I was worried about 15W50 being too thick as its not a pressurized system, almost certain it has a slinger.
_________________________
2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles

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#4498596 - 08/26/17 11:14 AM Re: mobil 1 Racing 4T [Re: mobilaltima]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: mobilaltima
Ive always noticed what Cujet said about running 15W-50 in these engines, I'm not doubting what he said at all, I'm just hesitant to run a 50 weight in it.


I don't know what he says, but I've never had any issues with a -40 or -50 oil in any OPE engines.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4498664 - 08/26/17 12:37 PM Re: mobil 1 Racing 4T [Re: mobilaltima]
Cujet Offline


Registered: 02/15/03
Posts: 7150
Loc: Jupiter, Florida
This subject comes up once in a while. Interestingly, again and again, certain oils provide excellent protection in air cooled engines. Among them are the Mobil 1 oils: Mx4t 10W-40 and the associated 20W-50 V-Twin, 5W-40 TDT and the robust 15W-50.

All of those oils have a stout ability to provide excellent lubrication under very high heat conditions without excessive shearing. High HTHS.

The 10W-40 is an ideal choice for that engine in hot climates.
_________________________

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#4498787 - 08/26/17 03:45 PM Re: mobil 1 Racing 4T [Re: mobilaltima]
FZ1 Offline


Registered: 02/07/08
Posts: 4727
Loc: Texas
If that is motorcycle oil it doesn't have as much friction modifiers as automobile oil.

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