Originally Posted By: Gokhan
The ACEA spec for your engine is A5/B5 or C2. It means HTHSV (high-temperature, high-shear viscosity) is about 3.0 cP.
The difference between the two is that A5/B5 has a higher TBN (more acid-neutralizing detergent) than C2 and you can do a longer oil-change interval (OCI) with it as a result.
Use a high-quality, known-brand synthetic if you care.
However, as everyone said, any oil will work in this engine. I run a thinner oil than recommended-- ACEA C5 (HTHSV ~ 2.6 cP [0W-20]) -- in a much older Corolla and it works fine. You can run a thicker oil than A5/B5 or C2 -- such as A3/B4, C3, or C4 -- but your fuel economy will suffer and the engine will feel a little more sluggish and a little less responsive, and that's the only effect you will see.
I had this car and engine. My manual stated ACEA A1 ! Toyota UK confirmed I could run C2/C3 as long as it was Xw30.
The ACEA spec for your engine is A5/B5 or C2. It means HTHSV (high-temperature, high-shear viscosity) is about 3.0 cP.
The difference between the two is that A5/B5 has a higher TBN (more acid-neutralizing detergent) than C2 and you can do a longer oil-change interval (OCI) with it as a result.
Use a high-quality, known-brand synthetic if you care.
However, as everyone said, any oil will work in this engine. I run a thinner oil than recommended-- ACEA C5 (HTHSV ~ 2.6 cP [0W-20]) -- in a much older Corolla and it works fine. You can run a thicker oil than A5/B5 or C2 -- such as A3/B4, C3, or C4 -- but your fuel economy will suffer and the engine will feel a little more sluggish and a little less responsive, and that's the only effect you will see.
I had this car and engine. My manual stated ACEA A1 ! Toyota UK confirmed I could run C2/C3 as long as it was Xw30.