Single grade oil: For example: SAE 30 (single grade oil with viscosity 30 for summer) Multi-level oil: For example: SAE 10W30 (this is a multi-grade oil for both high and low temperatures. W – winter: winter.) This oil helps oil bearing bearings lubricate when the engine temperature is low. This is especially noticeable when it’s […]
Classify oils according to ISO
No. LOSS ISO ISO 3448 Kinematic viscosity at 40oC 01 VG 2 1.9-2.4 02 VG 3 2.8-3.5 03 VG 5 4.1-5.0 04 VG 7 6.1-7.4 05 VG 10 9.0-11.0 06 VG 15 13.5-16.5 07 VG 22 19.8-24.2 08 VG 32 28.8-35.2 09 VG 46 41.4-50.6 10 VG 68 61.2-74.8 11 VG 100 90.0-110.0 12 VG […]
Classify lubricants according to NLGI
No. Classified by NLGI Needle penetration at 25 o C / 0.1mm External form 1 000 445-475 Half loose 2 00 400-430 Extremely soft 3 0 355-385 Very Solf 4 1 310-340 Soft 5 2 265-295 Medium soft 6 3 220-250 Medium snake 7 4 175-205 Snake 8 5 130-160 Snake Snake 9 6 185-115 Extreme snakes
Oil classification according to API (Part 1)
Petrol engine lubricating oil: S = service, spark SA pure no additives, not suitable for use. SB Has additive for surface protection, and anti-oxidant. SC (1964), SD (1968), SE (1972), SF (1980), SG (1988), SH (1993 -1997), SJ (1997 2001), SL (2001 2003), SM (2004 2010) SN 2011 Diesel engine lubricating oil: C = commercial, […]
Oil classification according to API (Part 2)
API STATUS USE CA Obsolete Not suitable for engines manufactured after 1959 CB Obsolete Not suitable for motors manufactured after 1961 CC Obsolete Not suitable for engines manufactured after 1990 CD Obsolete Used for naturally aspirated and turbocharged diesel engines CD-II Obsolete Used for 2 stroke diesel engine CE Obsolete Used for naturally aspirated and […]
