Quote:
Originally Posted by Dancake
So you're telling me that the wrong spec of oil cannot lead to bearing failure on the crankshaft? Engine components wear at different rates, and they don't always fail in a particular order. There's always the possibility that the replacement head could be the source of the problem, but again you need an independant engineers assessment to confirm this.
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Not in 60,000 miles!
You could run an 0w20, a 10w60 or even the dreaded Acea C3 Edge 5w40 and it would not cause a main bearing failure before a turbo or top end issue.
I'm fairly certain they botched the last repair and did not inspect the main bearings for damage or excess wear, which they were supposed to do.
If the HG was not correctly torqued it could have caused a coolant to oil leak, but most owners detect the loss of coolant (Or overflow) or Mayo on the dipstick well before the turbo, cam shaft or rings fail.
A used oil analysis will show up any excess anti freeze (High Sodium and Potassium), in addition to water in the oil, increase in insolubles and decrease in viscosity.
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2003 V40 1.9TD Mods: Scratches, bent bumpers, raised REAR mats & internal mud guards.
SHELL ULTRA 5/40 & LIQUI MOLY CERATEC.
Everyone should DYOR (Do Your Own Research)