Firstly...my new vtr has done just under 60k, with mostly full service history, although it seems to sound a bit rattly/tappety...its not very loud at all...and doesn't seem to do it on idle...although when revving it it does a little....is this just because its an 8v(my old 16v mazda didnt really do this) or could it need something? If so...are they hydraulic tappets and could i use some HLA treatment when changing oil?(when i first got the mazda it did it a little on startup occasionally...one treatment of this and it did it like once or twice in the two years i owned it.)
Secondly...what oil is best for vtr engines and would a thicker grade help the ticking? On the history there is a pre delivery inspection report thing showing 10w40 oil used, then on the 12k service it was ticked as 5w30 being used, im not too sure whats in it now but what is recommended? I was tempted to use 5w40 as its meant to be thinner when cold and thicker when warm...would this be okay?
Cheers
Secondly...what oil is best for vtr engines and would a thicker grade help the ticking? On the history there is a pre delivery inspection report thing showing 10w40 oil used, then on the 12k service it was ticked as 5w30 being used, im not too sure whats in it now but what is recommended? I was tempted to use 5w40 as its meant to be thinner when cold and thicker when warm...would this be okay?
Cheers
