Hi all,
This is the first time I have posted, although I have been lurking for a few weeks picking up as much info as I can from the search facility.
I am based in the UK and run a 1991 Renault 5 GT Turbo 1397cc pudhrod carbed engine with 11,061 miles on it. It's a french hot hatch...I'm not sure if Renault are imported to the states.
Anyways, It has been recomended that I use only Castrol RS 10w-60 or Mobil motorsport 15w-50.
To my mind these oils are a little too thick, but I have been warned away from anything thinner than a 10w due to oil seeping past the turbo seals. The car has just had a brand new hybrid turbo, so I don't really see how this can be an issue. Plus, due to the low mileage I woould imagine all of the engine seals and gaskets to still all be in excellent shape, despite the age. I have recently purchased some Texaco Havoline 5w-40 fully synth, but agin have been told this will as good as wreck my engine as it is far too thin...Why?
Renault's original recomendation is a 10w-40, can going down to a 5w really be that bad for my engine?
Also, is this Texaco Havoline stuff any good? It was cheap at £10 for 5 litres, but I have managed to convince myself that I got a bargain, not an inferior product.
Thanks
This is the first time I have posted, although I have been lurking for a few weeks picking up as much info as I can from the search facility.
I am based in the UK and run a 1991 Renault 5 GT Turbo 1397cc pudhrod carbed engine with 11,061 miles on it. It's a french hot hatch...I'm not sure if Renault are imported to the states.
Anyways, It has been recomended that I use only Castrol RS 10w-60 or Mobil motorsport 15w-50.
To my mind these oils are a little too thick, but I have been warned away from anything thinner than a 10w due to oil seeping past the turbo seals. The car has just had a brand new hybrid turbo, so I don't really see how this can be an issue. Plus, due to the low mileage I woould imagine all of the engine seals and gaskets to still all be in excellent shape, despite the age. I have recently purchased some Texaco Havoline 5w-40 fully synth, but agin have been told this will as good as wreck my engine as it is far too thin...Why?
Renault's original recomendation is a 10w-40, can going down to a 5w really be that bad for my engine?
Also, is this Texaco Havoline stuff any good? It was cheap at £10 for 5 litres, but I have managed to convince myself that I got a bargain, not an inferior product.
Thanks