OK, I have what may be a legitimate oil question, apparently not covered elsewhere.

Wha tis the order of magnitude between say 10-40 weight and 20-50 weight.

I know that there is a 10 point spread at both ends.

But what does that mean in real life terms?

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Current Benzes

1989 300TE "Alice"
1990 300CE "Sam Spade"
1991 300CE "Beowulf" RIP (06.1991 - 10.10.2007)
1998 E320 "Orson"
2002 C320 Wagon "Molly Fox"

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