No. This is correct. I'm up in canada and we have to pay close attention to how the oil viscosity works.
Not to repeat RRR. But the number before the W is its rating when cold. After the W is at that oil's operating temperature. Note though that different oils have different operating temps.
EX: 5W30
5 When cold
30 When at operating temp
The W thing is just an old hang around because it was designed to work in winter and summer. So guys used to call it 5 WINTER then whatever summer oil. Which is a misnomer in itself. Oil is considered cold whenever it isn't in its operating temperature range. Even if its 30+ (Celsius) out. It's technically still "cold" oil in the pan. It just warms up faster than when it's -30 out.
