My only thought was my Mercedes dealer refused to do the first oil change prior to the scheduled 10k. It was a S63 Cabriolet. My only thought is, why do the manufacturers insist on this when itās a customer expense? That was a 603 up twin turbo.
Has anybody waited the full 10k miles for the first oil change as per the owner manual? I have a ā21 and I am wondering if changing it prior could be the cause.
No but it appears the supercharger and other performance add-ons might not be. Shelby makes various HP levels. All Iām saying is check with Shelby America to confirm. Regardless, the car is stunning and well put together. I just donāt think Shelby America would install
Roush parts. It seems odd...
The one I posted above Iāve seen in person and it does not have any Roush markings on it anywhere. This one has all documents from shelby. This dealer also sells Roush equipped cars and they are totally different. I canāt imagine the prior owner adding it. I would check with Shelby USA. They...