i have heard 2 person use,tested minyak sawit ( cooking oil sawit based ) as their car engine lubricant.1st - Volvo 240GL (using VESAWIT )2nd - Volvo 245GLIthe owner for 240GL tell me that his fuel consumption reduce to half from usual(test for highway crusing yesterday night) and tempreature(normal) + kereta more ringan + engine smoother and more responsive.is there anyone here using minyak sawit ( cooking oil sawit based ) as a engine lubricant?need more comment and feedback.RegardspatiNidop