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Obviously you want something fully synthetic- I always use mobil 1, but hear that the top end Motul stuff (6100 or higher, like 300V?) is also very good.

People always complain that its too expensive when doing frequent oil changes, and that you can use cheaper oil because of the fact that its changed frequently (which does sound logical).

But its your engine, and the oil you put in it is all its got, why not give it the best :P

Also i suppose it depends how you drive it. If you redline it all the time, definitly go a good oil like the mobil. If you just cruise/potter it around i dont suppose it would really matter!

While on the topic of oil, can someone explain WHY turbo engines need synthetic oil!?

Cheers, NACHO

Yeah, I use Mobil 1.

I think synth oil can take the heat from the turbo better.

Also synth oil starts to break down at around 125-130 degrees, while the cheaper stuff breaks down at lower temps. That and the fact that the synth has better cold and hot lubricating properties.

J

Go Motul. I changed to 300V at the last change and it feels really good. 2000K and it is still like new, oil is still clear.

If you take the old oil down to the local servo (with mechanic of course, no point taking it to shell select!) and give them 5 bucks i'm sure they can get rid of it for you :)

Guest Oz Elitesport
Originally posted by Xeron

10w-60, u got a bad smoking or leak problem, cause if u dont get a lighter weight, check ur manual for what is recommended for ur areas temperature range, but ull be loosing a few horsies with that oil being so heavy when warm.

I'm using the castrol formula R (10W-60).

This has been recommended by others. Dont have a bad smoking or leaking problem, just took the advise of others.

Oz.

Castrol says this about their Formula R 10W-60 oil:

A full synthetic 10W-60 viscosity engine oil that ensures maximum protection under a wide range of driving conditions and high stress applications. It helps extend the life of your engine as well as minimise oil consumption. Originally developed for endurance sports car engines, it is recommended for highly stressed competition engines and older technology sports cars and luxury sedans.  

SAE 10W-60, API SL/CF, ACEA A3/B3

About the 5W-30 oil they say:

A synthetic 5W-30 viscosity engine oil which enables faster acceleration with excellent engine protection and performance. If offers excellent engine cold start responsiveness and contributes to increased fuel efficiency. Recommended for highly tuned, four cylinder engines and latest technology engines requiring 5W-30 or 10W-30 viscosity. Approved for use by Porsche, VW, Audi and Mercedes-Benz.

SAE 5W-30, API SL/CF, ACEA A3/B3/B4

And the 0W-40:

A full synthetic, free flowing 0W-40 viscosity engine oil that significantly reduces friction, whilst delivering more power, greater protection, reduced emissions and superior fuel efficiency. Recommended for the latest technology and prestige engines, such as Porsche, BMW, Rolls Royce, VW, Audi, Jaguar, Rover and Mercedes-Benz.

SAE 0W-40, API SL/CF, ACEA A3/B3/B4

I can't remember exactly, but I *think* the owner's manual specifies 10W-50 grade oil. That would make the 30 and 40 weight oils a tad too thin. I'll have to check the owner's manual when I get home.

All of these Castrol synthetic oils are of very good quality though so it may not matter too much. Either way, I'm presently using the 10W-60 stuff and I have absolutely no bad things to say about it. The car doesn't use a single drop between oil changes.

If you're changing oil regularly and often, it shouldn't really matter which brand you choose. Just get a good quality fully synthetic oil and you'll be ok. I personally chose Castrol over the Mobil because I like Larry Perkins better than Peter Brock :P

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