Same issue, same engine. Switch to specifically Valvoline protect and restore 5w30, run a bottle of Berrymans B12 cleaner thru the gas tank before your oil change. I did this and saw improvements.
Pros: saw improvements
Reviews of VALVOLINE parts For Business
Average Rating
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The manufacturer's average rating is calculated based on ratings of all its spare parts. It determines the place in the manufacturer ranking
4.0
Manufacturer Ranking
#74
352
Spare Parts
14
Country
USA
Spare Parts
Comparisons
Could be a spark plug, ignition coil, injector or low compression.
Pros: spark plug, ignition coil
Cons: low compression
Vehicle:
Hyundai Sonata
Valvoline restore and protect is all that you can do. Best motor oil out there.
Pros: best motor oil
Vehicle:
Kia
VALVOLINE RESTORE AND PROTECT AND SHORTEN OIL CHANGE INTERVAL! It will fix it!
Pros: effective sludge removal
Vehicle:
Kia
Run valveoline restore and protect for 3000 miles. Add engine oil flush before eat oil change according to their instructions repeat 4 times or more. After that continue to run valvoline restore and protect until the engine dies
Edit: dies from old age at 500k miles
Pros: engine longevity, protects engine
Vehicle:
Kia
Mileage: 4828 km
8,000 fall through spring, 6,000 for summer, running full Valvoline full synthetic.
Mileage: 9656 km
Don't know how many miles is on this car but these are notorious oil burners. It's a long shot buy you might try running Valvoline Restore & Protect oil.
Pros: Restore & Protect oil
Cons: notorious oil burners
If you do research oil analysts here in this sub, Valvoline comes out the best.
Pros: Valvoline comes out best
Vehicle:
Subaru
I'm trying out Valvoline Restore & Protect right now. I only ran oem Idemitsu before but started to have oil consumption issues with that oil the last two winters so I decided to switch.
Cons: oil consumption issues
Their most recent mistake cost me my entire vehicle. They put my oil filter cover on without an oil filter. This caused debris from less than three months to create enough friction to blow a piston arm in my engine.
Cons: blew a piston arm
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