Yanmar YSE8 - Classification by Viscosity; SAE-Viscosity Table

(3) Air-tightening--k€eps the
cylinder air-tight,
prevents
escape
of compressed
air
and operating
gas.
(4)
Cleaning--carries
away carbon
(combustion
product)
and intelnal
dust.
(5)
Rust
prevention--keeps parts
from rust.
Today, improved
engines call for Ngh-quality
lubdcating oils. Oil
companies
are now
using a
[umber
of additives to improve the
properties
of their lubricaung
oils.
5.2.2
Classification
by
viscositv
Lube
oil viscosity
should be so selected
as to suit the ambient
temperature.
SAE-Viscosity Table
t
I
F
SAE
No.
..
o'F
(
17.8"C)
I l0oF
ta8
aoc)
Sayboli
unive'sal Kinematic
viscosity.
CSt
$ybotl
uoiYersar
viscosiry. CSI
lo'c
5W
below
4,000 below 869
10w 6,000a-l 2,000
1,303a-2,606
20w r 2,000b48,000
2,606b-10323
l0
-2ec
20
45-58
513.9.62
30
58-70
9.62.t2.93
300c
40
7G85
t2.92-16.7'1
50
85-110
16.17.22.68
8