Engine oil?

[Stooby]

I'm changing the oil on the motor on Friday & wondered if anyone had any recomendations on oil?
I know its recommended 10W-40 but don't know if maybe go for some Mobil 1 0w-40?
I must admit i'm not clued up on oils, the gearbox is getting some Castrol Syntrax but not sure what to get for the engine? :2ponder:
Any advice would be great :thumb:

[Dyney]

I use Castrol Magnatec as it's reasonable cheap and easily available so I don't mind changing it more often, but there are loads of different oils that people recommend :)
Castrol RS, Motul, etc

[MIDLIFE]

Just changed my oil used mobil 1 0-40w, cheapest place i found was halfords @ £45.99 for 5 litres (some only 4.5 litres) leaves some for a top up.

[ScoobyDuck]

i would say the 0w-40 stuff is too thin when cold. you want something more 10 wise.

i always use MoTul 300v 15w50 which is fully synthetic and gives excelent oil pressure and is very resistent to breaking down when hot (which normal oils can do)

a lot of people use Castrol R which is good too.

Steve

[Scott.T]

I second the 0W 40 being too thin.

I used the Mobil full syth motorsport stuff which is somthing like 15W 40 but this made the tappets noisey at initial start-up.
Swapped back to my old favorite Castrol Syntax semi and the noise went away.....I always go for Syntrax now unless the Halford semi stuff is on a good offer. and chane about every 3,500 miles

don't beleive the hyp regarding fully sythn.....

[BULL]

yup magnatec semi-sythnetic for me also ..tried the 0-50w for 2 days and made the engine sound like ide dropped a http://www.smilieland.com/graphics/explosion021.gif down the oil filler tube...

[spot]

i thought the number b4 W was the temperature it can run at and the 40 is the thickness? so wouldnt 0w 40 b the same a 10w 40 but just run better in winter?:2ponder:

[chriswstippp]

From an oil company web site, hope it help :)

"In a 10w-40 for example the 10w bit (W = winter, not weight or watt or anything else for that matter) simply means that the oil must have a certain maximum viscosity/flow at low temperature. The lower the "W" number the better the oils cold temperature/cold start performance.

The 40 in a 10w-40 simply means that the oil must fall within certain viscosity limits at 100 degC. This is a fixed limit and all oils that end in 40 must achieve these limits. Once again the lower the number the thinner the oil, a 30 oil is thinner than a 40 oil at 100 degC etc. Your handbook will specify whether a 30, 40 or 50 etc is required."

[spot]

can i get a gold star?? pretty pweeeease

[Stooby]

Thanks for the advice, think i'll get the magnatec, i'll see whats available @ halfords on the day
Cheers