10 Best Conventional Motor Oils 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 511 products, scanning 2750 reviews, spending more than 36 hours of research and speaking with our test users, we think the AmazonBasics Conventional Motor Oil is the one of the Best Conventional Motor Oil on the market.

AmazonBasics Conventional Motor Oil – Best Overall Conventional Motor Oil

AmazonBasics Conventional Motor Oil

Castrol 03096 GTX ULTRACLEAN 5W-30 Motor Oil – Best Budget Conventional Motor Oil

Castrol 03096 GTX ULTRACLEAN 5W-30 Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Unique TriShield technology provides superior deposit protection
  • Maximum protection against viscosity and thermal breakdown
  • Ultra low friction to improve gas mileage; Bottle Color: White
  • Meets Chrysler MS 6395, Ford WSS-M2C929-A, Ford WSS-M2C930-A, GM 6094M
  • Exceeds ILSAC GF-5, API SN

Castrol 03094 GTX 10W-40 Motor Oil

Castrol 03094 GTX 10W-40 Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Unique TriShield technology provides superior deposit protection
  • Maximum protection against viscosity and thermal breakdown
  • Ultra low friction to improve gas mileage; Bottle Color: White
  • Premium, custom made additives enable advanced performance
  • Exceeds ILSAC GF-5, API SN

Valvoline High Mileage with MaxLife Technology SAE 5W-30 Synthetic Blend

Valvoline  High Mileage with MaxLife  Technology SAE 5W-30 Synthetic Blend
  • Seal conditioners rejuvenate aging engine seals to help stop and prevent oil leaks
  • Extra wear protection helps prevent future engine wear
  • Extra detergents keep older engines cleaner by bonding with and removing sludge and deposits
  • Anti-oxidants help prevent oil breakdown preventing engine-clogging sludge and deposit formation
  • For any product use or product technical questions call 1-800-TEAM-VAL

Pennzoil High Mileage Conventional 5W-20 Motor Oil for Vehicles Over

Pennzoil High Mileage Conventional 5W-20 Motor Oil for Vehicles Over
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Conventional motor oil compatible with most vehicles
  • Helps prevent sludge and other damaging deposits
  • Fortified with active Cleansing agents to prevent performance-robbing deposits
  • Keep your engine clean and responsive
  • Designed for vehicles over 75,000 miles

Valvoline Daily Protection SAE 10W-30 Conventional Motor Oil 5 QT

Valvoline Daily Protection SAE 10W-30 Conventional Motor Oil 5 QT
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Formerly Valvoline Premium Conventional Motor Oil; same great product, now in new packaging
  • Protects against all types of deposits at all temperatures to keep engines clean
  • Contains durable anti-wear additives that stay in the oil longer to improve protection and provides enhanced oxidation control to resist oil thickening
  • Provides thorough anti-wear protection exceeding current U.S., Japanese and European wear tests for gasoline and gasoline turbo-charged engines
  • For any product use or product technical questions call 1-800-TEAM-VAL

Pennzoil 550045208 5 quart 5W-30 Motor Oil (SN/GF-5 Jug) – Premium Pick

Pennzoil 550045208 5 quart 5W-30 Motor Oil (SN/GF-5 Jug)
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Cleans out up to 40% of engine sludge in the 1st oil change. Continues to clean in the 2nd oil change
  • Helps prevent sludge and other damaging deposits
  • Helps clean up engines by gently lifting sludge deposits off engine surfaces and dissolving them safely into the oil
  • Controls high-temperature oxidation and deposits
  • Enhanced emission system protection compared to GF-4 and earlier service categories

Pennzoil 550022838-PK6 5W-30 High Mileage Vehicle Motor Oil

Pennzoil 550022838-PK6 5W-30 High Mileage Vehicle Motor Oil
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Conventional motor oil formulated for high mileage vehicles
  • Motor oil weight: SAE 5W-30
  • Get a cleaner engine and better wear protection versus standard conventional oil
  • Designed for cars over 75,000 miles
  • Backed by the Pennzoil Lubrication Limited Warranty

Pennzoil Conventional 10W-30 Motor Oil (5-Quart

Pennzoil Conventional 10W-30 Motor Oil (5-Quart
  • For best performance, follow the manufacturer's recommendations in your vehicle owner's manual.
  • Cleans out up to 40% of engine sludge in the 1st oil change. Continues to clean in the 2nd oil change
  • Helps prevent sludge and other damaging deposits
  • Helps clean up engines by gently lifting sludge deposits off engine surfaces and dissolving them safely into the oil
  • Controls high-temperature oxidation and deposits
  • Enhanced emission system protection compared to GF-4 and earlier service categories

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