@Thinking
as you are assuming 5W20 and 5W30 relating with temperature is misconcept mostly in Pakistan
sir, for this reason i have made a try to clarify it through my oil guide avilible on home page of pakwheels
on the other hand study viscosity chart bellow and then give feed back
<TABLE dir=ltr height=342 cellSpacing=0 cellPadding=0 width=467><TBODY><TR><TD style="BORDER-RIGHT: #0000cc 1px solid; BORDER-TOP: #0000cc 1px solid; BORDER-LEFT: #0000cc 1px solid; BORDER-BOTTOM: #0000cc 1px solid" width=57 height=90>
SAE
Viscosity
Grade
</TD><TD style="BORDER-RIGHT:
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#0000cc 1px solid; BORDER-LEFT:
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Cold Cranking Viscosity
(cP) (°C)
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=90>
Maximum Low Temperature Pumping Viscosity
(cP) (°C)
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=90>
Low-Shear-Rate
Kinematic Viscosity(cSt) at 100°C
(Min)
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=90>
Low-Shear-Rate
Kinematic Viscosity (cSt) at 100°C
(Max)
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=90>
High-Shear-Rate
Viscosity (cP)
at 150°C
(Min)
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
0W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
6,200 @ -35
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -40
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
3.8
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
5W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
6,600 @ -30
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -35
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
3.8
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
10W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
7,000 @ -25
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -30
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
4.1
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
15W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
7,000 @ -20
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -25
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
5.6
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
20W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
9,500 @ -15
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -20
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
5.6
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
25W
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
13,000 @ -10
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
60,000 @ -15
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
9.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
-
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
20
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
5.6
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
9.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
2.6
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
30
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
9.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
12.5
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=16>
2.9
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=45>
40
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=45>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=45>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=45>
12.5
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=45>
16.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=45>
2.9
(0W-40, 5W-40, 10W-40 )
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=60>
40
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=60>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=60>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=60>
12.5
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=60>
16.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=107 height=60>
3.7
(15W-40, 20W-40,
25W-40,
40 monogrados)
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
50
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
16.3
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
21.9
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM: black 1px solid" width=107 height=16>
3.7
</TD></TR><TR><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=57 height=16>
60
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=81 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=83 height=16>
-
</TD><TD style="BORDER-RIGHT:
#0000cc 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=66 height=16>
21.9
</TD><TD style="BORDER-RIGHT: black 1px solid; BORDER-TOP:
#0000cc 1px solid; BORDER-LEFT:
#0000cc 1px solid; BORDER-BOTTOM:
#0000cc 1px solid" width=77 height=16>
26.1
</TD><TD style="BORDER-RIGHT: black 1px solid; BORDER-TOP: black 1px solid; BORDER-LEFT: black 1px solid; BORDER-BOTTOM: black 1px solid" width=107 height=16>
3.7
</TD></TR></TBODY></TABLE>