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Using 5w instead of 10w #4438034
06/21/17 10:05 PM
06/21/17 10:05 PM
Joined: Aug 2015
Posts: 434
Caribbean
Nissan101 Offline OP
Nissan101  Offline OP

Joined: Aug 2015
Posts: 434
Caribbean
Goodnight all
My car manual states either 10w or 20w, would there be any problems using a 5w40 instead of a 10w40. No negativity.
Would 5w be too thin at start up?

Climate, my climate is so warm 20w flows like water laugh
Reason i ask too, is that i can get some 5w40 oil at a great price.


Nissan N16 -10w30
Nissan S13 -20w50

Royal Purple HPS smile
Re: Using 5w instead of 10w [Re: Nissan101] #4438037
06/21/17 10:06 PM
06/21/17 10:06 PM
Joined: Oct 2014
Posts: 13,322
Canyon County Idaho
CT8 Offline
CT8  Offline

Joined: Oct 2014
Posts: 13,322
Canyon County Idaho
It will work.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Using 5w instead of 10w [Re: Nissan101] #4438047
06/21/17 10:21 PM
06/21/17 10:21 PM
Joined: Dec 2010
Posts: 4,041
Los Angeles, California
Gokhan Offline
Gokhan  Offline

Joined: Dec 2010
Posts: 4,041
Los Angeles, California
No oil is too thin at cold startup. To put it more accurately, every oil is too thick at cold startup.

5W-40 is very similar to 10W-40 in terms of viscosity. It's also synthetic; so, you get the added benefits of a synthetic.


1985 Toyota Corolla LE, 4A-LC engine, ~ 273,000 M
Mobil 1 Extended Performance 0W-20 SN PLUS (PAO-based)
Fram Ultra XG3600 filter (full synthetic), 90430-12031 drain gasket (rubber on aluminum)
Re: Using 5w instead of 10w [Re: Nissan101] #4438055
06/21/17 10:30 PM
06/21/17 10:30 PM
Joined: Apr 2007
Posts: 3,173
WI.
dblshock Offline
dblshock  Offline

Joined: Apr 2007
Posts: 3,173
WI.
go for a good 5/40, it's the perfect grade.

Last edited by dblshock; 06/21/17 10:31 PM.

16 Civic Coupe Touring 38k
640:1 TCW-3 E091
Edge 0/40 XG7317
Firehawk Indy 500

06 4Runner SR5 146k
640:1 TCW-3
PP 5/30 XG3614
Falken Wildpeak AT3W
Re: Using 5w instead of 10w [Re: dblshock] #4438059
06/21/17 10:35 PM
06/21/17 10:35 PM
Joined: Dec 2011
Posts: 5,677
North Carolina
rooflessVW Offline
rooflessVW  Offline

Joined: Dec 2011
Posts: 5,677
North Carolina
Originally Posted By: dblshock
go for a good 5/40 0W-40, it's the perfect grade.

Fixed that for you.


"Zed's dead baby, Zed's dead."
Re: Using 5w instead of 10w [Re: Gokhan] #4438060
06/21/17 10:36 PM
06/21/17 10:36 PM
Joined: Dec 2016
Posts: 8,039
Waco, TX
Linctex Offline
Linctex  Offline

Joined: Dec 2016
Posts: 8,039
Waco, TX
Originally Posted By: Gokhan
No oil is too thin at cold startup. To put it more accurately, every oil is too thick at cold startup. 5W-40 is very similar to 10W-40 in terms of viscosity. It's also synthetic; so, you get the added benefits of a synthetic.


Exactly, it should be very good oil.

Is it Shell Rotella T6? Chevron Delo?


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Using 5w instead of 10w [Re: Nissan101] #4438090
06/21/17 11:07 PM
06/21/17 11:07 PM
Joined: Oct 2015
Posts: 228
OH
Chewie Offline
Chewie  Offline

Joined: Oct 2015
Posts: 228
OH
The 5W and 10W will be around the same viscosity at the ambient temps you see in the Caribbean. The difference between them only becomes apparent at ambient temps well below freezing.


2002 Lexus GS300 | 2JZ-GE | M1 HM 10W-40 | XG3600
Re: Using 5w instead of 10w [Re: Nissan101] #4438132
06/22/17 12:41 AM
06/22/17 12:41 AM
Joined: Sep 2015
Posts: 6,179
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline

Joined: Sep 2015
Posts: 6,179
Kalifornia Kollective
There you go. Most of the above replies do not apply in your environment. If 5W-40 is readily available and the right price, it won't hurt anything.

All cool oils, be they 0W, 5W, or 10W are many times thicker than the 40 is at op temp. But, I have to ask, since you will never see freezing of any kind, why not just run SAE 30 HD or SAE 40 HD and be happy to not have any VII's at all smile

See this thread for discussion: https://bobistheoilguy.com/forums/ubbthreads.php/topics/4096620/1 smile

Last edited by BrocLuno; 06/22/17 12:43 AM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Using 5w instead of 10w [Re: Nissan101] #4438183
06/22/17 05:28 AM
06/22/17 05:28 AM
Joined: Jun 2011
Posts: 1,838
Crawfordville FL
SilverFusion2010 Offline
SilverFusion2010  Offline

Joined: Jun 2011
Posts: 1,838
Crawfordville FL
The 5w will work fine. For your climate I would also consider a 10w-30


2010 Ford Fusion SE 3.0L V6, 181 miles M1 HM 10w-30
Re: Using 5w instead of 10w [Re: Nissan101] #4438490
06/22/17 12:11 PM
06/22/17 12:11 PM
Joined: May 2014
Posts: 3,948
Columbus,Nebraska
Yah-Tah-Hey Online content
Yah-Tah-Hey  Online Content

Joined: May 2014
Posts: 3,948
Columbus,Nebraska
Originally Posted By: Nissan101
Goodnight all
My car manual states either 10w or 20w, would there be any problems using a 5w40 instead of a 10w40. No negativity.
Would 5w be too thin at start up?

Climate, my climate is so warm 20w flows like water laugh
Reason i ask too, is that i can get some 5w40 oil at a great price.
No oil on the shelf is too low viscosity at start up.

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