Engine oil Shell or OEM Subaru

I use Rotella T6 5W40 on my stock motor STI.

now im using shell long ride currently at 1500km and i havent feel any vibration yet and its cheaper than amsoil.

I would also make sure that every time you fill up the gas you check the oil dipstick and if it’s a little low top off the oil. In fact, I think this is probably crucial to owning an older Subaru like mine mine has 300 K.

I second those saying bring a spare quart of oil. I wouldn't be too worried about taking my 2012 Outback at 170K miles on such a trip...but would agree check the oil every 1000 miles or every morning (depending how far you go in a day) just to make sure it isn't getting low.

Check all your fluids ASAP. If any are low, top off as per the manual and monitor closely before you leave to make sure it's not leaking or consuming anything. Definitely bring extra oil, 1 or 2 quarts would be pleanty, and some paper towels and rubber gloves help too.

Should be fine, but CHECK THE OIL FREQUENTLY. This series of engines is notorious for oil consumption problems, which may not appear at all when doing short trips, but suddenly it's drinking 1qt or more per 1000 miles on the highway.

Take a quart of oil with, especially if you don't have reliable data on how much your engine burns. Check it occasionally and top off if needed.

Rotella T6 15W-40 in the perfectly sized 2.5 gallon jug. I’ve run this in both LML’s since day 1 and combined it’s over 500,000 miles.

I have 2015 sportwagon tdi and use shell rotella t6 5w 40 . I have 340000 miles on and runs fine.

Rotella T6 Full Synthetic 5w-40... Burns a little.