I use Mobil 1 10-40 in both of my cars. I buy it because Walmart has a good price, but there are lots of good oils out there.

 

Would anyone know the right torque specs on the Valve covers when i put them on? also is there an order you are supposed to follow when torquing them? greatly appreciated

 

Quite simple...these are plastic units so lightas.
Correct torque spec is 8Nm....whatever that is in Inch Pounds ;o)
Correct sequence for tightening is start from the c3enter in a diagonal pattern.
Before tightening down, make sure the mating surface is clean, the ruibber seal is in it's groove and give a wipe with carb cleaner and wipe dry.
These seals need no sealant added except at the mating face of the front timing cover.
A small dab is all that's required.

 

The tensioners shown are obviously the metal bodied ones, but I note the plastic chain guides are orange in colour. I was always under the distinct impression that the plastic chain guides on 3rd generation metal tensioners are white. Can these be in either colour ?
I understood the white denoted a higher quality plastic part, less likely to show wear over time. I know I am probably totally wrong in this, but could someone clarify for me as I'm thinking of checking mine as well. I have a late 2k 3.2 xj8.

 

i was asking myself the same thing, i thought because they were orange they needed to be changed

 

engine oil dyes them orange. Nothing wrong there.

 

Good to know thank you