The 2.0L is a basic but oil burning 8V powerplant. 80% highway cruise at 60 mph, some stop and go and a couple of 60 mile 7000 ft mountain road driving. Oil burning with the Total 40 weight isnt as much as previous brands at a 30 weight. Beetle had the Total / ELF 5W-40 for the last 3 oil changes with a Mahle filter. Current change at 80170. Silicon is a little high assuming from a K&N drop in replacement, but switched back to a fram paper air filter about 2000 miles before oil change. Am wondering if the 12.23 (5w-"35") cSt Viscosity is something I should be concerned about...It starts out a 13.6 (low 40 weight) as stated on the Total website. Is it normal for it to shear?