oil question

[fasterthanjesus]

i had an oil change about 2 months ago. i was looking at changing from 5w 40 fully synthetic to 10w 40 half synthetic.

do i drain the oil first, or would it do no harm to drop the different oil in?

[Wobba]

It won't do any harm, but I am a bit anal about having things done right so personally I'd drain the lot after getting the engine nice and warm, then fill with the 10w 40.

[Coops]

i'd change it properly mate, and the filter. as far as i'm aware you shouldnt really mix grades or types of oil

[BRUN]

can i ask why you would want less protection for your engine ?

[eternalife]

can i ask why you would want less protection for your engine ?

How so?

[Yanoo_]

It's not suggested to mix various kind of oils. Use full-synth 5w-40 or 10-w40, it has better property compared to semi-synth. And change the oil filter, too (genuine Renault filter is highly recommended).

[fasterthanjesus]

im not convinced that 5w 40 fully synthetic is the weapon of choice for me.

im going to try 10w 40 half synthetic.

[Yanoo_]

im not convinced that 5w 40 fully synthetic is the weapon of choice for me.

im going to try 10w 40 half synthetic.

I used ELF Competition 10w-40 semi-synth once. I had to change it after 400 kms, it was so bad.

[G33R7]

im not convinced that 5w 40 fully synthetic is the weapon of choice for me.

im going to try 10w 40 half synthetic.

I used ELF Competition 10w-40 semi-synth once. I had to change it after 400 kms, it was so bad.

what went wrong?

[Yanoo_]

what went wrong?

The engine became loud, especially the hydraulic tappets, the oil pressure was low and the oil was hotter than before.