Afternoon all,
 
	Just joined the forum after buying a 2012 WRX STi 340r Prodrive.
 
	Absolutely lovely car and very much enjoying driving and owning it. 
 
	Though got a few questions! 
 
	It has a semi forged engine, done around 45k now on 86k, according to the history its always been serviced with 10/40 oil fully synthetic. Would this be the correct grade? Seems quite thick to me given my old turbo 86 was 5/30 and my 25 year old Land Rover is 5/30 as well 😅
 
	Could anyone direct me to a service schedule for the diffs and gearbox, and what oil I should be using. Looks to be 75w/90.
 
	Will be doing the fuel filter as well, any special tools needed for this?
 
	Looking to change all the oils and fluids soon as I can, so I can start with a everything fresh! 
 
	 
 
	No stranger to mechanics, been working and building Land Rovers for the last 15 years! 
 
	 
 
	Thank you, looking forward to it!