Questions on engine oils for Caterpillar Engines. Caterpillar DEO Multigrade E-MAIL, LRG-1, API CH-4,
and API CF-4 Viscocity Grade
SAE 0W20 Ambient Temperature Minimum. -40 F, Maximum. 50 F
SAE 0W30. -40 F. 86 F
SAE 0W40. -40 F. 104 F
SAE 5W30. -22 F. 86 F
SAE 5W40. -22 F. 104 F
SAE 10W30. - 4 F. 104 F
SAE 15W40. 5 F. 122 F
Synthetic base oils preform improved flow at very low temperatures ( in arctic conditions)
Synthetic base oils have improved oxidation stability atvery high operating temperatures
Synthetic. base oils Caterpillar does recommend extension of oil change intervals for any type of oils.
Dave Atherton Retired Cat Mechanic. ( information SEBU7186-04 )
