Oil change

[KennyW]

Good morning everybody,

Interesting observation.

I've just done my regular oil change but replaced 10/40 oil semi synthetic with 05/30 w oil fully synthetic and the rattling tappets I had, have gone

It was always about 2000 -3000 rpm.

Kenny

[Peter.N.]

Never had a problem with them on an Hdi but the 2.1 XMs used to clatter after I had done an oil change and then get quieter with mileage.

Peter

[Timmo]

If i am correct, the lower the numbers the thicker the oil?? So intheory the newer oil should help silence the little rattles??
I remember putting in ep75 in my old gti box as the synchro was showing signs 4th - 3rd when hot,sorted it but cold mornings were. Interesting for the first few miles!

[RichardW]

Nope, other way around - lower numbers = thinnner. The first number is the equivalent straight grade it won't go thicker than when it's cold, and the second the grade it wont go thinner than when it's hot.

[Timmo]

Hmmmn, where did I install the lower is thicker from then I wonder??

[myglaren]

Hmmmn, where did I install the lower is thicker from then I wonder??

You’re thinking of IQ

[Timmo]

[Peter.N.]