Here is their response:
Thanks for your email.
As stated in my email and yours the oil used will have no affect on driving performance or cause any damage to the engine.
In the Renault ELF guide to looking after your engine it states that Competition ST 10W- 40 can be used in all petrol engines for Renault vehicles.
Also in my previous email I suggested that you contacted *our Service Manager, as you were "not filled with confidence", to arrange the oil to be changed. I believe from * , as of now you have not contacted him.
His direct line is * and he will arrange to book your vehicle in and change the oil.
There you have it! Feel free to use 10w40! NOT. Obvusly they put 5w40 in the manual for a laugh.
I will never touch or step foot into RENUALT ORPINGTON again.
Thanks for your email.
As stated in my email and yours the oil used will have no affect on driving performance or cause any damage to the engine.
In the Renault ELF guide to looking after your engine it states that Competition ST 10W- 40 can be used in all petrol engines for Renault vehicles.
Also in my previous email I suggested that you contacted *our Service Manager, as you were "not filled with confidence", to arrange the oil to be changed. I believe from * , as of now you have not contacted him.
His direct line is * and he will arrange to book your vehicle in and change the oil.
There you have it! Feel free to use 10w40! NOT. Obvusly they put 5w40 in the manual for a laugh.
I will never touch or step foot into RENUALT ORPINGTON again.