Originally Posted By: WhizkidTN
FWIW: For my '12 Kia Optima SX (2.0L turbo), I started running M1 0W-40 oil since new and did various UOA from both Blackstone and Polaris with OCI of ~4K miles (due to Kia's "severe usage" verbiage). I had little wear metals but very poor fuel dilution and shearing down of the oil at that point as well as high oxidation numbers. You could smell the fuel in the old oil. Yes, I run Oil Catch Cans and did drain about 1-2OZ of fluid out per OCI. Runs strong and gets good fuel economy (when I keep my foot out it - daily driver). I only run Top Tier 93 octane gas (E10). Car never uses oil nor do I get any creeping up oil level as measured by the dip stick.
I switched to Castrol EDGE 0W-40 oil a while back and my Polaris UOA showed a significant reduction in oxidation (same good wear metal levels) as well as a reduction in viscosity shearing. In my last OCI (just recent), I noticed basically no fluid in my OCCs. So the Castrol EDGE oil has held up (same driving conditions) much better than the M1 oil in my engine with my state of tune/driving style/etc.
To the OP, I'd say your game-plan is a good one for your engine series! Keep it up sir.
Yet again, more proof that M1 oils are garbage these days... sorry its off topic but everyone seems to be using this junk M1 in their new GDI Turbo engines. Why? There is so much better oils out there! I'm betting Pennzoil PUP/PP 0W40 would do stellar in your little rocket! Have you ever given it a try?
FWIW: For my '12 Kia Optima SX (2.0L turbo), I started running M1 0W-40 oil since new and did various UOA from both Blackstone and Polaris with OCI of ~4K miles (due to Kia's "severe usage" verbiage). I had little wear metals but very poor fuel dilution and shearing down of the oil at that point as well as high oxidation numbers. You could smell the fuel in the old oil. Yes, I run Oil Catch Cans and did drain about 1-2OZ of fluid out per OCI. Runs strong and gets good fuel economy (when I keep my foot out it - daily driver). I only run Top Tier 93 octane gas (E10). Car never uses oil nor do I get any creeping up oil level as measured by the dip stick.
I switched to Castrol EDGE 0W-40 oil a while back and my Polaris UOA showed a significant reduction in oxidation (same good wear metal levels) as well as a reduction in viscosity shearing. In my last OCI (just recent), I noticed basically no fluid in my OCCs. So the Castrol EDGE oil has held up (same driving conditions) much better than the M1 oil in my engine with my state of tune/driving style/etc.
To the OP, I'd say your game-plan is a good one for your engine series! Keep it up sir.
Yet again, more proof that M1 oils are garbage these days... sorry its off topic but everyone seems to be using this junk M1 in their new GDI Turbo engines. Why? There is so much better oils out there! I'm betting Pennzoil PUP/PP 0W40 would do stellar in your little rocket! Have you ever given it a try?