Mobil 1 used to be my favorite synthetic oil with 5W-30 in the wife's 2008 Prius and 0W-40 Euro Formula in my BMW 530i with 10K mile OCIs on both. At 50K miles, the Prius started using oil and I figured that the low-tension rings that Toyota used was the cause but numerous UOAs showing high iron content with Mobil 1 left me wondering. Also, Mobil 1 no longer offers any oil meeting BMW's LL-01 spec. The 0W-40 Euro was a great synthetic and was on BMW's recommended list, but I guess that Exxon Mobil is no longer interested in that market. Lastly, Mobil 1 does not currently offer any ACEA A5 oil, which is required/recommended for some of the newer turbo-equipped cars.
All this leaves me wondering about Mobil's future game plan. Your thoughts?
All this leaves me wondering about Mobil's future game plan. Your thoughts?