Engine oil Shell or AMSOIL

PartReview Score

Rank #4 in ranking

944

325

351

4.5

Engine noise

4.3

Exhaust smoke

4.2

Warning light

4.3

Owners' choice:

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #6 in ranking

860

300

328

4.5

Engine noise

4.4

Exhaust smoke

3.9

Warning light

4.5

Owners' choice:

Reviews

All

Shell

AMSOIL

Shell › Engine oil

Akoneon 9 Jan 2026, 14:26

Rating 5.0

shell long ride sulit for honda click

Pros: sulit for long ride

Vehicle: Honda

Shell › Engine oil

No_Scratch_1685 7 Jan 2026, 11:53

Rating 5.0

I am using 15W40 Shell Oil for the last 8 years. No issues. 160k Kms on the Odometer

Pros: no issues

Mileage: 160000 km

AMSOIL › Engine oil

Entire-Salamander-88 5 Jan 2026, 14:21

Engine noise:

Rating 5.0

Amsoil 100%, I tested it quite a few, and I’m noticed the least amount of decoration and power loss with it

Pros: least amount of decoration

Cons: power loss

Shell › Engine oil

Familiar_Play_4915 4 Jan 2026, 16:41

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

AMSOIL › Engine oil

HydroAmaterasu 2 Jan 2026, 03:42

Engine noise:

Rating 5.0

5w30 Amsoil, ignore the tick it's normal.

Vehicle: Ford Mustang

AMSOIL › Engine oil

Mile_High_Astro 31 Dec 2025, 05:13

Rating 5.0

Amsoil engine oil

Pros: High quality oil

Vehicle: Toyota 4runner

AMSOIL › Engine oil

YashD55 30 Dec 2025, 20:59

Rating 4.0

Also, I have upgraded to Amsoil Synthetic Engine Oil which further helps for maintaining DPF health as it reduces ash that can accumulate and plug the filter.

Pros: maintaining DPF health

Cons: reduces ash

Vehicle: Kia

Mileage: 36000 km

Shell › Engine oil

Introvert_FE 26 Dec 2025, 01:38

Engine noise:

Rating 5.0

I run rotella T6 5w-40. Have for 120k miles and will for the next 120k

Pros: long-term reliability

Mileage: 120000 km

Shell › Engine oil

inconvenient_penguin 20 Oct 2025, 23:50

Rating 3.5

Ive used T6 with good results. The major drawback with T6 is foaming, it's less than great in that regards.

Pros: good results

Cons: foaming

AMSOIL › Engine oil

poopbucketchallenge 1 Dec 2025, 20:21

Exhaust smoke:

Rating 1.0

Amsoil is overpriced and underperforms. I’ve bought $1000s of dollars of their race oils and have slowly realized all are near the worst on market, always the worst for the coin.

Pros: race oils

Cons: overpriced, underperforms