OT:
For cars without automatic ignition timing adjustment, kung mag change mo ug fuel grade - adjust the ignition timing to a point that your engine can work at optimal performance. Sa ing-ani nga pamaagi naa kay mahimong improvement sa engine performance with a particular fuel. Sa mga dili pa kahibalo mo adjust sa ignition timing ug di pa kahibalo maminaw sa maayong andar sa makina, iadto lang na ninyo mas experienced nga mekaniko aron matabangan ka. Pipila lang ang mekaniko makamao ani nga skill, it really take a lot of experience and initiative on the part sa mekaniko.

Originally Posted by
tonioyantao
ok before buying expensive gas tanawa sa ninyo ni. your kia cd5 won't know the difference unless you own a high performance car then premium is the way to go.