String Theory Garage will be closed to the public from Wednesday, 29th July to Thursday, 6th August for our annual shutdown.
If you need to get in touch, please leave us a voicemail or send an email. Our team will happily get back to you when we return on Friday, 7th August.
Shopping online? Don't worry! Our online store will remain active! We hope to ship orders placed for in-stock items as normal during the shutdown. Anything else will be dealt with upon our return.
Thank you for your understanding, String Theory Garage Team
Motul 8100 X-Cess 5W-40: Ultimate Protection for Elite European Engines
Give your high-performance engine the defence it deserves. Motul 8100 X-Cess 5W-40 is a premium, 100% synthetic lubricant engineered specifically for the demanding requirements of powerful and recent cars fitted with Gasoline and Diesel engines, naturally aspirated or turbocharged, indirect or direct injection. Multipurpose product featuring numerous car maker approvals, especially recommended for vehicles still under warranty.
By combining advanced oil film resistance with exhaust system protection, this formula ensures your engine runs cleaner, smoother, and longer.
Why Drivers Choose X-Cess
Engineered for Powerful European cars:Tailored perfectly for the performance of BMW, Mercedes-Benz, Porsche, and Volkswagen Group (VW, Audi, Seat, Skoda) vehicles.
Key Specifications & OEM Approvals
Ensure you check your vehicle owner's manual before use to verify compatibility.