Quote:
Originally Posted by luggsey
Just to add my experience of Shell Helix in a high miles diesel, I use 5/30 helix ultra and flush with liqui moly before oil change which is annual 5k ish miles.
After using liqui moly the engine oil stays cleaner for longer which I notice when checking the dip stick.
I'm a convert to liqui moly and shell helix and mann filters and in combo, it's made my lazy lifters work better and quieter.
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Using the LM flush intended for use at idle RPM just before an oil & filter change is good news (Unless you have any oil leaks which it might make worse for a while).
A 5w30 is thicker than an 0w30 when the oil is warm (Complicated explanation to do with the way SAE groups are defined), but for an older worn diesel, or one that does long oil change intervals, an 0 or 5w40 would be better.
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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.
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