Chevron (Thailand) Limited, the marketer and manufacturer of quality lubricant products under Caltex Delo brand, led by Santisak Thaipat, Country Chairman and General Manager, recently hosted the launch of new "Caltex Delo(R) 400 SLK API CK-4" low-SAPs heavy duty diesel engine oil at Maneeya Ballroom, Renaissance Bangkok Ratchaprasong Hotel. The new "Caltex Delo(R) 400 SLK API CK-4" with ISOSYN(R) Advanced Technology is a premium quality, low SAPs heavy duty diesel engine oil with ISOSYN(R) Advanced Technology formulated to provide outstanding protection for on and off highway application, mixed fleet of both old and new diesel engines as well as engines fitted with Diesel Particulate Filters (DPF) and those fitted with Selective Catalytic Reduction (SCR) or Exhaust Gas Recirculation (EGR) emission control technologies. It is formulated using the latest generation additive technology to provide superior emission control in line with the public environmental policy to enforce Euro 5 Standard as well as help lessen PM 2.5 dust particle pollution issue.