Euroteck European & Foreign can understand why our customers in the greater area would wonder if the presence of a knocking, or pinging sound, coming from their vehicles' engines should be of concern. Euroteck European & Foreign tells our customers that the presence of an occasional engine knocking or pinging noise will not necessarily be harmful to the engine. Additionally, when a pinging or knocking noise from the engine can be heard, it does not indicate a switch should be made to gasoline with a higher octane level. But if the pinging or knocking in the engine becomes persistent or heavy, that knocking sound could be the indication of a more serious car engine problem and to avoid any damage we suggest our customers bring their vehicle to Euroteck European & Foreign and let a member of our skilled auto repair mechanic team inspect the engine knocking to avoid any potential to the vehicle's engine. Of course Euroteck European & Foreign invites you to schedule online.