Originally Posted By: bluesubie
Originally Posted By: wemay
kschachn,
It recommends ILSAC GF-4 / SM / ACEA A5 and shows the Starburst in the owner's manual but i don't recall that it states the need for the starburst explicitly. The ILSAC is another hurdle. The FST has all of these covered. just-in-case
Actually, this sounds like the OP's language as well. And I commend the OP by not being afraid to run 0W-40! Although the manual does have language about thicker viscosity being required in high temps and "5W-40 conventional" being allowed for replenishment.
Not that even running 5W-30 guarantees warranty coverage anyway. A recent 2013(?) WRX owner at nasioc initially had his warranty denied and the oil changes were performed by the dealer! They were blaming him for not checking the oil (owner's manual states at every fill up), but SoA eventually decided to goodwill it after a couple of weeks or so.
Hey, where's Pablo? I think he's been in shock at all of these recent WRX and STI failures. Sorry to ramble and go
when 5W-30 isn't even the original question.
So what's a better detergent/dispersant package for a 4 pot turbo pumping out over 300hp? The primarily calcium package of M1 or the lower calcium, higher magnesium package of the Castrol? More calcium?
Or just flip a coin.
Thanks for the praise. I didn't want to run a 30 weight because I know that they can shear fast if I drive my car hard (which I do). I just wanted to make sure that the engine is still being lubricated properly and protected at higher rpms. I went with a 0w40 as opposed to a 5w40 because even though I will never see 0 degrees Celsius where I am, I figure since it is targeted for lower Temps, then why would it hurt lol.
I added a can of ceratec with my last oil change and again every 30k while and using mos2 every oil change in between. I will also add 2oz of redline break in oil at every oil change just for the ZDDP. I also use a bottle of redline si-1 on the last tank of gas before every oil change just to have nice and clean injectors. It couldn't hurt and I know that redline has one of the highest PEA counts, even more than chevron techron.
I know that a lot of this is probably a little overboard but this is just pennies compared to the maintenance cost of an engine repair out of warranty (because I don't plan on keeping the car stock for long haha).
On a side note, I would love to get my hands on Motul 0w40 but the cost is almost 3x the cost of Castrol / Mobil and I think they are very similar.
Also to the person who asked if I prefer BP vs exxon, I do prefer BP and have use did at every fill and saved every receipt since I got the car at 6 miles (7100 as of today).
I was so anal about the break-in of my car (my first ever new car) that I changed the oil at 100 miles and filled it with amsoil SAE30 (break-in oil) which I changed every 300 (three hundred) miles before my 1000 mile switch to Castrol 0w40. (4 oil changes at the 1000 mile mark).