How Bad Are Cheap "Diesel" Motor Oils? $14 vs $58

Jun 2024/13 min/5 products tested

The verdict

He didn't give an outright ranking in this one — the full tested list is below.

Best value
Rotella T6
“The Rotella T6 isn't the best at anything, but it's actually pretty good at just about everything. Considering the price tag, it's a great value.”
Buy ↗
Also noted
Schaeffer’s
“Schaeffer's seems like a great choice with a very robust additive package and it performed very well in my testing.”
Buy ↗
Also noted
Hot Shot’s
“the Hot Shots ran circles around the competition for cold oil flow”
Buy ↗
Also noted
Royal Purple
“the heat really hurt how the oil performed at cold temperatures. It also seems pretty low for anti-wear additive content.”
Buy ↗
Also noted
Mobil Delvac
“1,451 parts per million just doesn't seem like enough.”
Buy ↗

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