Hello from Athens, Greece
About a month ago I picked up a used '08 Jeep Grand Cherokee WK 3.7L with 68k miles on the clock.
As soon as I got my hands on it I changed all fluids on the truck. And as both the owner's manual and the refill cap suggested, I used 5W-20 oil (Amsoil synthetic).
A few days later I noticed a ticking sound from the engine. Even the wife noticed it, said the Jeep sounded like a diesel...
At that time I also came across some service receipts that the previous owner had kept among the Jeep's documents, where I found that the dealer (and sole Jeep importer here in Greece) who's been servicing the truck since day one had been using 5w-30, from the very first service...
I'm not really sure if the ticking sound I hear is related to the oil change, but I'm leaning towards flushing the *correct* 5W-20 oil and going back to the *wrong* 5W-30 that's been used in the engine all it's life...
What would you do?
X.
About a month ago I picked up a used '08 Jeep Grand Cherokee WK 3.7L with 68k miles on the clock.
As soon as I got my hands on it I changed all fluids on the truck. And as both the owner's manual and the refill cap suggested, I used 5W-20 oil (Amsoil synthetic).
A few days later I noticed a ticking sound from the engine. Even the wife noticed it, said the Jeep sounded like a diesel...
At that time I also came across some service receipts that the previous owner had kept among the Jeep's documents, where I found that the dealer (and sole Jeep importer here in Greece) who's been servicing the truck since day one had been using 5w-30, from the very first service...
I'm not really sure if the ticking sound I hear is related to the oil change, but I'm leaning towards flushing the *correct* 5W-20 oil and going back to the *wrong* 5W-30 that's been used in the engine all it's life...
What would you do?
X.
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