Suburbazine
Registered Member
- Joined
- Jan 13, 2019
- Messages
- 1,095
- Reaction score
- 573
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- Location
- Pigeon Forge, TN
- Genesis Model Type
- 2G Genesis Sedan (2015-2016)
...and then I come in the thread and mention that I had the main bearings wiped out and and a seized exhaust valve at 84,000 miles. Now on engine #2.
The bearings were apparently a slow death item, they didn't get scored or anything, just lost tolerance until the oil pressure couldn't keep up. I do NOT recommend ever running 5w-20 even if Hyundai lists it as compatible. The "unofficial analysis" from a Hyundai engineer was that the bearings failed due to insufficient oil viscosity during extended engine operating hours, as I drove the car for upwards of 8 hours a day at the time. If running more than an hour or two continuously, I would recommend only using 5w-30.
The bearings were apparently a slow death item, they didn't get scored or anything, just lost tolerance until the oil pressure couldn't keep up. I do NOT recommend ever running 5w-20 even if Hyundai lists it as compatible. The "unofficial analysis" from a Hyundai engineer was that the bearings failed due to insufficient oil viscosity during extended engine operating hours, as I drove the car for upwards of 8 hours a day at the time. If running more than an hour or two continuously, I would recommend only using 5w-30.
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