okay so i had my oil changed today, and when i got back in the car i noticed the type of oil they put into the vehicle. My car calls for a SAE 5W-20 or 0W-20 and they put in 10W-30, now there is this knocking noise and the engine is louder(my car is a 2007). I took it back to them and told them about it, and showed them the owners manual and the cap on the engine says what type of oil to use. so they drained the oil out and replaced it twice the noise is quieter but it is still there, its a brand new car with only 2990 miles on it.
they called around and everyone they talked to said the noise will go away once the lifters are back to there prime, putting in the contempary oil stripped the lifters of the sticky stuff that the synthetic oil put on them, they said it will take awhile but to speed up the process to use and additive called slick 50, they said that came from a TOYOTA tech. Is it safe to do this or should i not ? i dotn want to mess up my warranty....
2007-04-12
18:29:56
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Maintenance & Repairs