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This post of mine should have been "stuck" first time around, pehaps an admin will do it now. Please?
These are the recommended grades for standard cars in a normal road use situation. If this does not apply to you because the car is modded or used on the track than read my comments.
Petrol...
TBH, Suabaru recommend 5w-30 and 5w-40 for later models 2000 onwards and we recommend a fully synthetic 5w-40 in these cases.
Earlier models tend to prefer 10w-40 or 10w-50.
Depending on the state of modification, there may be a case for thicker oils but if your oil temps dont exceed 120degC...
I read on many forums about 0w and 5w oils being too thin. I will try to explain it without getting over technical and well go from there.
0w-40, 5w-40, 10w-40 and 15w-40 are all the same thickness (14cst) at 100degC.
Centistokes (cst) is the measure of a fluids resistance to flow...
Why 5w-40?
Because, it has better cold start than 10w, 15w etc meaning less engine wear and it still protects as an sae 40 at 100degC.
Its synthetic an none of this hydrocracked rubbish and therefore stays in grade longer meaning longer drain intervals.
And, Renault now recommend it for...
Here are my contact details:
mailto:sales@opieoils.co.uk">sales@opieoils.co.uk
Tel: 01209 215164 Guy or Simon
Data: http://www.opieoils.co.uk/lubricants.htmhttp://www.opieoils.co.uk/lubricants.htm
Cheers
Simon
Of course you can use 0w-40, it has the same viscosity as 5w-40 at 100degC and flows better when cold.
M1 is a proper pao synthetic and better then the Elf quality wise.
Cheers, Simon
You can use fully at 2k, use 5w-40 fully synthetic.
I have many (just email me for a price list) they range from £22-£32 for 4/5 litres depending on basestock quality.
Cheers, Simon
Definately 5w-40 fully synthetic and bear in mind that 5w-40 and 10w-40 are the same viscosity when hot. Both 14cst at 100degC.
The difference is cold crank viscosity and 5w gives better protection from wear on start.
Cheers
Simon
Whether you use a 0w-40, 5w-40, 10w-40 or 15w-40 they are all sae 40s and have a viscosity at 100degC of 14cst. So, they all provide the same hot protection!
The "w" number denotes "cold crank viscocity" and is relevent to cold start viscosity and how quickly the oil flows when you turn the...
We’re looking for top draw cars for our trade stands at the following events and this Club sprang to mind.
The French Car Show (Bruntingthorpe 29th May)
Pugfest (Prescot Hill 10th July)
If you are interested in "showing" off your car then please post your interest here with a picture (if...
Hmm, dont know what happened to my reply.
Based on the below, I would say there are quite a few and with extended drain periods they will probably cost you less per annum.
Oil drains can be extended
Vehicle life can be extended
Costly repairs can be reduced
Fuel mileage can be improved...
Manufacturers in the main recommend a minimum standard, you can always step up from this minumum.
I.E. Many recommend 10w-40 Semi-synthetic, it doesnt preclude you from using a fully synthetic. Unless of course you own a rotary engine but, thats a whole different story!
Cheers
Simon (RX8...