guys,just a newbie. Ask ko lang kung san me magaling mag tune up ng nissan gsx engine?

nag pa change oil kasi ako 3months ago sa shell station near in cainta rizal sabi nun mekaniko dun hindi daw na titiming yun GSX engine because wala daw distributor cap..and that time im confuse parang malabo ata yun,kindly give some idea kung saan or kung papaano..tnx

A 70/30 water to coolant mix may improve cooling efficiency but that's at the cost of less...
Coolant...