I plan on using LM for my next oil change. Tech sheets for the various oils mentioned above I think this is the big detriment to the OEM Castrol which seems to have a higher Nowak rating which doesn't help when it comes to carbon buildup. But the best part is the Nowak rating is only 4.7% and it has a very slightly higher VI and viscosity at 100C. It'll work in a road-driven vehicle over an extended interval unlike the 300V and it's a true Ester base. My next oil change, I'm going to try the Motul Sport 5W40 which basically sits between the 8100 line and the 300V line. I don't care much about winter performance as it doesn't get super cold here. I decided to try the X-cess as it has good viscosity at 100C, a Noack rating just below 10% and a high VI. In the end, I decided my prior experience of very little oil consumption with the Motul pushed me back in their direction after looking at a host of options from Pennzoil, Castrol (OEM), Mobil 1, Redline, etc.pouring over all their specs and taking price into consideration. I'm not sure if the 8100 falls into that category but from what I understand, it's a higher 'grade' than even the Specific. I also read about Motul loosing a lawsuit in Europe recently as some of their formulations were using group III oils and not true group IV synthetics.

I did a ton of research and spent quite a bit of time on the 'Bob the oil guy' web page until acronyms made my head explode and left me with a less clear path to well, clarity. I decided to switch back to Motul, this time the X-cess 8100 5w40. With Motul, I'd had virtually zero oil consumption with the exact same driving habits. Car ran fine, engine was just as quiet overall but my oil consumption went from zero to about 1 liter in 5,000 miles. My last oil change I decided to make a switch to Liqui-Moly, specifically the 4100 Top Tech 5w40. Motul has risen above existing standards by developing products based on unconventional technologies like the Double Esters of the 300V range for cars and motorcycles or else the amine-free and boric acid-free technologies used in the aeronautics industry for machining titaniums.I've used Motul since day one of ownership of my RS5 and had been using the Specific 502 00 5w-40 and the X-Clean 5w-40. Using the correct application of Motul product will not void the vehicle's factory warranty. Motul products are all API and SAE approved with the latest certifications. Better fuel economy & improved horsepower.Compatible with catalytic converters and is officially approved by BMW.

Specially designed for the latest BMW & MINI gasoline engine models requiring a BMW LL-04 approval.ACEA C2 and C3 lubricants achieve extended drain intervals as managed by the vehicle on-board computer. MOTUL 8100 X-CLEAN EFE 5W-30 brings high lubricating properties such as wear protection and high temperature resistance for better controlled oil consumption. MOTUL 8100 X-CLEAN EFE 5W-30 has synthetic base stocks coupled with specific friction modifier molecules and dedicated SAPS levels that generate outstanding oil film resistance, reduce friction in the engine and provide after treatment device compatibility. Especially designed for the latest generation cars, powered by Gasoline and Diesel engines, naturally aspirated or turbocharged, indirect or direct injection.

Approved by BMW Group, GM (General Motors) Opel, Mercedes and Volkswagen for its Extra Fuel Economy property. OEM Approved API SN/CF ACEA C2/C3 BMW LL-04, MB 229.52 GM DEXOS2 FIAT 9.55535-S1/S3, BMW OE PN: 83210398507, Meets Chrysler MS-11106Īdvanced 100% Synthetic lubricant that provides at the same time High Protection and Fuel Economy. 8100 X-CLEAN EFE 5W30 - Fully synthetic lubricant, Mid-SAPS, specially designed to bring Extra FuelEconomy (EFE).

Motul xclean vs xclean efe