cars prob too fresh to have intake caking but could be possible on cylinder one if you've been babying it.
also that castrol oem oil is a nightmare i got a fill oil light after 1500km when i bought the car new and then at around 3500 again... dumped it for shell and the oil barely needed a topup until oil change..... even tried castrol again for 1 refill at around 80,000kms because it was dirt cheap and found engine was making funny noises and dipstick level was dropping ever month so it definately has some quality issues... surprised they made it OEM
u should try dumping the castrol and refilling with penrite enviro+ 504.507 or shell 504.507 (cant remember the exact one u need to google it) and see if it fixes up that engine behaviour on cold start and low speeds... could be an easy fix at 50- 70 for the oil and ull find ur car will perform better anyway.
From my personal experience with the ea888 engine these are the 2 best oils ive used so far that have the engine running smooth everytime all the time, little to no truck noises on cold start / warmup (aslong as oil level correct) and usually good to drive from cold .... had heaps of issues with castrol and now trying nulon 504.507.... finding that to be inferior to penrite and shell... not as bad as castrol tho but engine needs extra warming and then its good.
another issue can be your spark plug gapping leading to slightly choppy engine... do u know how to get to them?
Bookmarks