Castrol Edge 0w - 30 fully synth

[2blackhats]

I was looking at Castrol's website and I see they reccommend this stuff for the 'Ro. Anyone tried it, comments?

[Well_Fans]

I user Millers 5w-40 ctx fully synth myself - about 30 quid for 5 litres - you'll need 6.5l approx for a 5.7. Quite a few use the Mobile1 stuff as supplied with the car. There have been discussions on here in the past re oil choice - might be worth a search to see what guys like Monkfish and RapidGB recommend. Also take a look at the US LS1/LS2 forums as they'll have a much wider user base and range of exotic oils in use.

[2blackhats]

Thanks for the reply. I did do an "oil" search, but strangely couldn't really find what I was looking for. I'm sure oil has been done to death, but basically I'm asking what people put in their cars brand/grade? Are they happy with what they've got in? I notice Monkfish use 10w 30, thats a lot thicker than Castrol's recommended 0w 30. So, who's right, does it matter? Will it blow up if I put Miller's XFS 5w 40 in forinstance?

[ringram]

GM Recommended Euro equiv is Mobil1 0-40 Its on the door sills on the UK Spec LS7 Z06's etc

Slightly heavier oil will quieten down the valve train etc, but may lose some power.

[l4jor]

MY 05 CV8 uses standard GM 5-30 synthetic, in fact it has 15,000 miles on the clock and had three oil changes not including the factory stuff! Hell no the wonder i'm broke.. As I changed the dif and gearbox oil with Royal Purple ( from Monkfish ) I will use that brand from now on, only this time one oil change a year.
( I will cover less than 8000 miles this year..I think)