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Spare parts reviews ➔ All comparisons ➔ Shell ➔ Lucas

Engine oil Shell or Lucas

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Shell
Lucas
Shell › Engine oil
QueenAlpaca
  • Exhaust smoke:
Rating 5.0

using a heavier oil weight has been an old trick to help with oil consumption in Subarus for a long time now. I used to use Rotella 5w40 (before the reformulation) in my old 04 Baja Turbo and that particular oil was the best to keep the oil burning down.

Pros: keep oil burning down
Vehicle: Subaru
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Shell › Engine oil
Familiar_Play_4915
  • Engine noise:
  • Exhaust smoke:
Rating 5.0

I have always used shell 10w-40 and did regular oil changes around 4-4.5k. Faced no issues what so ever, engine was still healthy, no oil consumption, almost same performance.

Pros: healthy engine, no issues
Mileage: 370000 km
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Lucas › Engine oil
Cool-Tap-391
  • Engine noise:
Rating 3.0

Lucas OS works great. It's some amazing stuff, BUT. Do not go over your oil change intervals. Once the Lucas additive starts breaking down it turns to a nasty varnish. Went 7k using synthetic amsoil z-rod and Lucas OS, on a new rebuilt 4.0l. Lost a lifter and ate up the cam lobe.

Pros: amazing stuff
Cons: turns to nasty varnish
Mileage: 7000 km
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Which engine oil to choose — Shell or Lucas?

If choosing engine oil across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare engine oil across these categories:

Comparison of engine oil Shell and Lucas
  1. PR Score.
  2. Overall ranking.
  3. Vote balance.
  4. Average rating.
  5. Number of reviews.
  6. Feature ratings.
  7. Car owners’ choice.

Which engine oil are better — Lucas or Shell?

In March 2026 on PartReview, engine oil Shell were overall better than Lucas.

  1. Shell received a PR Score of 94 out of 100, and Lucas scored 78 points.
  2. Shell ranked 4 in the overall ranking, and Lucas ranked 31.
  3. The average rating is higher for Shell (4.5) than for Lucas (3.8).
  4. Engine oil Shell have better feature ratings than Lucas:
    • Engine noise - owners believe, that this property for Shell is better than Lucas.
    • Warning light - drivers claim, that this property for Lucas is outperforms Shell.
    • Exhaust smoke - reviews suggest, that this property for Shell is preferred to Lucas.

Which engine oil are more popular — Shell or Lucas?

In March 2026 on PartReview, engine oil Shell were overall more popular than Lucas.

By vote balance, engine oil Shell surpassed Lucas:

  • For Shell, the ratio of positive (1007) to negative (62) votes is 945 votes.
  • For Lucas, the ratio of positive (58) to negative (16) votes is 42 votes.

By number of reviews, engine oil Shell surpassed Lucas:

  • For engine oil Shell there are 351 review: 325 positive, 16 neutral, 10 negative.
  • For engine oil Lucas there are 23 reviews: 16 positive, 5 neutral, 2 negative.

Which engine oil do car owners prefer — Shell or Lucas?

In March 2026, according to PartReview, engine oil Shell led more car-specific ratings than Lucas:

Shell are chosen by owners of cars such as: Honda Jazz, Subaru Outback, Subaru Impreza WRX, Subaru Legacy, Volkswagen Scirocco, and others.

Engine oil Lucas have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of engine oil

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of engine oil Shell with: Mobil, Castrol, LIQUI MOLY, MOTUL, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota, Mannol.

Also available: comparisons of engine oil Lucas with: Mobil, Castrol, LIQUI MOLY, MOTUL, AMSOIL, VALVOLINE, PENNZOIL, RED LINE, OEM Toyota, Mannol.

You can also see who is better among other engine oil manufacturers: Mobil or Castrol, Mobil or LIQUI MOLY, Mobil or MOTUL, Mobil or Shell, LIQUI MOLY or Castrol.

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