
Originally Posted by
LNopal
1st: you are so wasting money using a highend gasoline. the lowest (93) should be fine and it will save you money.
2nd: did you changed your sparkplugs yourself or other person did it for you? if other person changed it for you, have you seen the older SPs to verify they were changed?
3rd: what is the general diagnosis for? do you have to get new set of SPs? if yes, then you just paid a replacement you don't need.
as i have been suggesting in my other posts, SPs can last until 100K KM without any issue. it's up to you if you want to replace them in a regular basis and it's your money to burn. SPs are expensive and the expense multiplies the number of times you replace them without the need to do so.