You can switch to boutique oils and they generally provide benefits - greater film strength, more exotic synthetic base stocks, etc.
However, without having to get exotic, M1 10w30HM is a very, very robust oil, scads tougher than it's other full-synthetic peers in the 5w-30 class and most other 10w-30s. HTHS (which basically decides how "tough" an oil is -film strength) is 3.5 vs. a typical 3.1/3.2 for most other 30 weights - is is an exponential scale so that is not a small difference. Unless you live in a fairly extreme cold climate, 10w30 offers no cold-start downside and considerable full-temp benefits.
For reference, Redline 10w-30, an excellent boutique oil, also has an HTHS of 3.5 - which is the top end of the "30" weight. A 3.6 becomes a (very thin) 40 weight - like most 0w-40s. I have run the Mobil 1 10w30HM in high-output, small displacement, high-pressure turbo engines (as well as many others), and had the oil laboratory tested after 7,500 miles. It was still within spec and doing well. I am sure other boutique oils would have been, too - like redline, Motul, etc. But for the ease of availability and relatively low cost vs. performance, it's my pick.
However, without having to get exotic, M1 10w30HM is a very, very robust oil, scads tougher than it's other full-synthetic peers in the 5w-30 class and most other 10w-30s. HTHS (which basically decides how "tough" an oil is -film strength) is 3.5 vs. a typical 3.1/3.2 for most other 30 weights - is is an exponential scale so that is not a small difference. Unless you live in a fairly extreme cold climate, 10w30 offers no cold-start downside and considerable full-temp benefits.
For reference, Redline 10w-30, an excellent boutique oil, also has an HTHS of 3.5 - which is the top end of the "30" weight. A 3.6 becomes a (very thin) 40 weight - like most 0w-40s. I have run the Mobil 1 10w30HM in high-output, small displacement, high-pressure turbo engines (as well as many others), and had the oil laboratory tested after 7,500 miles. It was still within spec and doing well. I am sure other boutique oils would have been, too - like redline, Motul, etc. But for the ease of availability and relatively low cost vs. performance, it's my pick.
