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It's no can of worms, in fact it's straightforward 5w-40 Choose quality to suit mods,use and budget Cheers Simon

The Members Area at http://www.opieoils.co.uk

You mean FF 75w-140 I guess? Cheers Simon

Go to the Members Section on my website and request an access code, we have an offer on until 17th Feb http://www.opieoils.co.uk Cheers Simon

There are hotter spots in the engine than the sump at 130degC there will be hotspots of 300degC which even a normal semi-synthetic oil will cope with. Oils don't just break down instantly, the polymers shear and the oil loses its ability to maintain the new viscosity (it becomes thinner at...

Let's get one thing clear, I supply 10w-60 and recommend it where it is appropriate for the engine or the application but conversly I caution against it's misuse! I have debated this many times on many car forums and I know there are some that do not agree with me however I have never had a...

How long were you running at these temps? The Pro S 5w-40 is happy for long periods at 120deg without shearing down, peak is 150+ in short bursts, yes its at its limit but it wont let go. What has the oil done to bugger the engine exactly? Cheers Simon.

The Castrol RS 10w-60 is a hydrocracked mineral oil, it will buckle before a top quality ester/pao synthetic 5w-40 and definatley 10w-50. The main problem with the 10w-60 is its just too thick for these cars, its not even mention in the handbook, SAE50 tops. Cheers Simon.

What do you mean by too hot? Cheers Simon

As a rule, the narrower the viscosity gap the more stable the oil will be. EG, a 5w-40 (35) will be more stable than a 10w-60 (50) This will explain some of the questions on this thread: Why do oils lose viscosity with use? Viscosity Index Improvers. An oils viscosity will...

5w-40 is better for short journeys I think you meant to say Cheers Simon http://www.opieoils.co.uk

0w-40 is fine although Renaults recommendation is 5w-40 This is how it works! A short lesson on Multigrades: If you see an expression such as 10W-40, the oil is a multigrade. This simply means that the oil falls into 2 viscosity grades, in this case 10W & 40. This is made possible...

The Pro S 5w-40 can handle up to 120degC sump temps, which is far higher than most oils I know of. Cheers Simon

They're a performance plug. Cheers Simon

Don't be daft, you clearly don't know what you are talking about. It's a race oil, a real synthetic ester/pao. Please qualify your statement! Cheers Simon

Not in Clio mate, completely the wrong grade of oil Cheers Simon

Take a look here: http://www.opieoils.co.uk Cheers Simon

5w-40 is the correct grade. Look for one that carries ACEA A3 specs. Cheers Simon http://www.opieoils.co.uk

Take a look in the Members Section here: http://www.opieoils.co.uk Cheers Simon

It's not a different viscosity, it contains a different addative pack which includes friction modifiers for the wet clutch. So halfway to the truth. Cheers Simon

You'll find the best prices in the Members Section here: http://www.opieoils.co.uk. Cheers Simon

A good track "race" oil. Something like Silkolene PRO S 5w-40 or Motul 300V 5w-40 Cheers Simon

Comes in 1L containers, most gear oils do as only small amounts are required. Check the Members Section here: http://www.opieoils.co.uk Cheers Simon

Why does your oil need addatives? Oil companys spend millions in development of oils and addative packs, you don't need anything additional. Just a decent oil. Cheers Simon

I can't see a problem with 0w-40 but some cars don't seem to like it. We normally recommend 5w-40 synthetics because they are more thermally stable due to the narrower viscosity gap although basestock quality is important. 5w-40 also seems to be the general recommendation for these cars as...

Cheaper oils are in the long run a false economy, In the first mile the higher volatility, inferior anti-wear performance and poor temperature resistance of a cheap grade of oil will start to show. Obviously, there will be no immediate effects. The whole point of top quality oil is long-term...

Indeed I supply and recommend this oil to GDI. Cheers Simon

It only comes in 5L bottles. It's carriage free until 14/12 Cheers Simon

I read so much stuff on the internet about Synthetic Oils that is simply not true so I felt it was time to tell the truth rather than accept the myth. So in future when you see someone state any of these, please do me a favour and point them at this thread! Synthetic motor oils damage...

I good reputable one. Drop me a mail to sales@opieoils.co.uk and I will forward on a list. Cheers Guy.