So, ive just broken her in (so to speak lol)

Does my 2016 WRX STi need an Oil change ?

The Manual states every 10k miles ? Does the car come with pre-load Full Synthetic ?

Yes. You will no doubt have some metal stuff in your oil from the engine bedding in. Best to change the oil to get rid of it, an oil change from a good garage should be less than 100 quid

Speak to your dealer as some include a running in change in the purchase price

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Do these cars come with fully synthetic oil from the factory, or do they use other whilst it runs in ?

I assume it would be fully synthetic from factory, and tbh it's worth doing it even if the manual doesn't say so ;)

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I didn't think you could run a car in on fully synth, too good an oil, glazes the bores leading to high oil consumption and tad lower compression ?

+1 above.

The car has done 1000 miles even after a full engine build after 1000 fully synth is fine

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Running in seems to be a debated subject, not sure why considering pretty much all the big tuners i know of do the following,

 

500 miles on crappy mineral oil, actuator disconnected and so only wastegate pressure

Oil and filter change to semi synthetic and additional 500 miles, still with actuator disconnected

Once at 1000 miles, oil and filter change to fully synthetic, reconnect the actuator and full map to suit.

26 minutes ago, Tidgy said:

Running in seems to be a debated subject, not sure why considering pretty much all the big tuners i know of do the following,

 

500 miles on crappy mineral oil, actuator disconnected and so only wastegate pressure

Oil and filter change to semi synthetic and additional 500 miles, still with actuator disconnected

Once at 1000 miles, oil and filter change to semi synthetic, reconnect the actuator and full map to suit.

Do you mean fully synthetic at the end?

oops yeah, hang on i'll change it

2 hours ago, kershaw-330s said:

 

The car has done 1000 miles even after a full engine build after 1000 fully synth is fine

 

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But did you not say it was fully synth from the factory, in which case it would have done the first 1000 miles with fully synth in it ?

I recon it would be as manufacturers are allways trying to make service intervals longer , are engines not bench run before they go in cars anyway ?

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I dont know tbh, do we reckon they run every single engine on the bench or just a few to meet QC, maybe they do some sort of minor running in procedure on each one before actually fitting them, although I am pretty sure you use crap oil to run in with, I wonder if the car manufacturers actually trust the public enough to put the cars out with inferior oil in or wether they think, peasants will abuse the car so less of two evils, send them out with fully synth ? 

Conspiracy theory....

Take the oil out of a car after 5k and see what it looks like and you'll understand why it needs changing more often that manufacturers claim. Even the oil producers will admit it needs changign more often that mans recomend

Would be interesting to see what oil does come in the cars from the factory

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Be more interesting to see what's in kylie minogues undercrackers !! 😜