Bests & Worsts Reviews from Amazon

according to people

214
people found this helpful, as of 2023
ranked #145,091 most helpful out of 571,544,897 reviews
★★★★★
Great Oil,Lab to back it up
I own a 2013 Sonata (purchased new)with around 106,000 miles now. I have used this oil in the car every change. I change my oil every 5000 miles. I get the oil tested every couple oil changes. I will post a copy of a report from around 90k For you to look at for yourself but the last of the report says it best "This engine is wearing better than most of its kind. Fuel dilution is harmless at just a trace, and a TBN of 4.7 is good and strong. Try 7,000 miles for the next run."
May 2018 · Automotive · verified purchase
the product in question
Castrol GTX Ultraclean 5W-20 Synthetic Blend Motor Oil, 5 Quarts
4.8★ · 10,147 ratings, as of 2023
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