Using Mobil 1 fully syn 0w-40 just changed from castrol 0w-40 found didn't burn and ran alot smoother but when the car has done 20+ minutes of driving found a distinct ticking , does that mean I need a thicker oil ? Doesn't knock on cold start ...
2007sti 88000kms 280bhp

[QUOTE=shazza;699174]Using Mobil 1 fully syn 0w-40 just changed from castrol 0w-40 found didn't burn and ran alot smoother but when the car has done 20+ minutes of driving found a distinct ticking , does that mean I need a thicker oil ? Doesn't knock on cold start ...
2007sti 88000kms 280bhp[/QUOTE]

Ticking - as in tappet noise?

[QUOTE=GTB Liberty;699176]Ticking - as in tappet noise?[/QUOTE]

Yes I think so ...

Sigh... dont use 0w-anything oil, to thin, no protection on your poor dak

[QUOTE=Julz;699247]Sigh... dont use 0w-anything oil, to thin, no protection on your poor dak[/QUOTE]

Twice in a night - [URL="http://www.bobistheoilguy.com/motor-oil-101/"]Oil,and Oils[/URL].

Enjoy the read.

[QUOTE=Julz;699247]Sigh... dont use 0w-anything oil, to thin, no protection on your poor dak[/QUOTE]

Time to learn what 0w means I think...

[QUOTE=Kato;699342]Time to learn what 0w means I think...[/QUOTE]

0W is what I reply when someone thinks they know better than me.

But to actually answer the question, the W stands for winter and the number is the viscosity - the lower the number the more viscous it is at lower temps.

I thought a 0w oil was only used in very cold places where it snows? Does it snow in perth?
I understand that the 30 or 40 or 50 is the operating viscosity which is basically what your after

[QUOTE=Julz;699388]I thought a 0w oil was only used in very cold places where it snows? Does it snow in perth?
I understand that the 30 or 40 or 50 is the operating viscosity which is basically what your after[/QUOTE]

The 0W refers to the viscosity at cold start and doesn't imply use in snowing conditions.

For the record, I would only use the oil as specified in my owner's manual or by my engine builder.

Is Penrite 10W-50 full synthetic any good? I have been using this oil in my Impreza 2.0R EJ204 with AVCS which I occasionally take to the track. Will it protect my engine or are there better options for my NA?

Has anyone used PM Lubricants ([url]http://www.perth-wrx.com/vb/gsl-rallysport-sales/51353-australian-made-oil-holds-bathurst-lap-record.html)?[/url]