Engine oil Castrol or VALVOLINE

Castrol Engine oil

I replaced the plugs, oil/filter and air filter with oem parts when I got it. I\u2019ve been changing the oil at 5k intervals with the recommended Castrol 0w-20.

Pros: oem parts
Mileage: 96560 km
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VALVOLINE Engine oil
inline_five
  • Exhaust smoke:
Rating 5.0

I run Valvoline restore & protect because 2x 5 qt jugs fits my 4 qt Prius and 6 qt Maverick perfectly and I run it on the Prius which has stopped oil burning from the low tension rings.

Pros: stopped oil burning
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Castrol Engine oil

2014 VW Passat 1.8TSI engine. 249k miles. Did the recommended oil change at every 10k until 125, then every 5 k. Transmission fluid change every 80k, looking back, will switch to 60k, just to be safe.

Pros: regular oil changes, transmission fluid change
Cons: dealer flushed coolant, clogged core
Mileage: 249000 km
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VALVOLINE Engine oil
MrFastFox666
  • Engine noise:
Rating 3.5

Legit. Worst case scenario it doesn't do anything, but I've seen some improvement in my Cadillac ELR. Engine is quieter and lots of sludge was removed. But fwiw lots still remains and the varnish is basically untouched.

Pros: engine quieter, sludge removed
Cons: varnish untouched
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