V IMPORTANT - RECOMMENDED S6 ENGINE OILS!!!!!!!!!!

[nickfb1]

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Just looking through car documentation, handbook etc, I noticed that the Handbook recommends 0W - 40 fully synthetic for 6000 miles and on (carlube RRR).
I then looked at recent service by TMS and they used castrol formula RS.
I phoned the dealer but could only talk to lady on service reception and she said that they used Castrol RS 10W-60 on all tvr servicing.
Surely with the speed6 a better cold start lower viscosity oil would be better, as recommended.
I did notice the oil P went up after the service, not a bad thing in theory, but pressure is measured on resistance and not flow, and surely a good oil flow is most important with these engines.

As someone else said in another thread you lose out at both ends of the scale with 10w-60. not as good for cold start and higher viscosity means higher temps and ultimately higher engine wear

Any thoughts welcome

>>> Edited by nickfb1 on Wednesday 27th April 18:58

>>> Edited by nickfb1 on Wednesday 27th April 18:58