Just picked up this little 2007 2 door hatchback with Toyota's 1.5 and auto trans. 109k miles on it.
Zero smoke or blowby.
Engine specs 5w30 down here. Same engine in my old scion and I always ran 10w40 all the way out to 230k. Being a little older and wiser. I would like to stick with a 5w30.
But... I have 200 quarts of castrol edge 10w40 HM oil.
Any harm in thinning it out with half 0w20 matching oil in each change?
Unit sees 90 miles per day. 15 miles of back roads and then all highway to work. Very little stop and go.
Also, any harm in swapping the trans over to valvoline full syn dex merc?
Zero smoke or blowby.
Engine specs 5w30 down here. Same engine in my old scion and I always ran 10w40 all the way out to 230k. Being a little older and wiser. I would like to stick with a 5w30.
But... I have 200 quarts of castrol edge 10w40 HM oil.
Any harm in thinning it out with half 0w20 matching oil in each change?
Unit sees 90 miles per day. 15 miles of back roads and then all highway to work. Very little stop and go.
Also, any harm in swapping the trans over to valvoline full syn dex merc?