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Castrol Classic 20w50 Comparison - September 2025

7 Best Castrol Classic 20w50 In the UK

1
Best Choice
9.8Exceptional
2
9.7Exceptional
3
Best Value
9.5Excellent
4
9.4Excellent
5
9.2Excellent
6
9.0Excellent
7
8.9Very Good
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Model

Comma CLA20505L 5L 20W/50 Classic Motor Oil - Yellow
Model
Castrol Classic XL20w/50 engine oil 1 gallon
Model
Castrol POWER1 4T 20W-50 Motorcycle Oil 4L
Model
Comma XFMOT1G X-Flow Type Mot 20W50 Mineral Motor Oil , 4.5 Liter
Model
Carlube 20W-50 Classic Motor Engine Oil 4.55 Litres
Model
Classic Castrol 1923B GP50 Monograde Engine Oil, 4.54 Liter
Model
Classic Castrol 1925/7176 XL 20W50 Engine Oil, 1 Liter

Brand

Comma
Brand
Castrol
Brand
Castrol
Brand
Comma
Brand
Carlube
Brand
Castrol
Brand
Castrol

Reviews

2,000 reviews
Reviews
1,224 reviews
Reviews
6,664 reviews
Reviews
1,528 reviews
Reviews
1,060 reviews
Reviews
208 reviews
Reviews
432 reviews

Tech Specs

viscosity

20W-50
viscosity
20W-50
viscosity
20W 50
viscosity
20W-50
viscosity
20W50
viscosity
SAE 50
viscosity
20W-50

manufacturer part number

CLA20505L
manufacturer part number
1925A
manufacturer part number
15F57A
manufacturer part number
XFMOT1G
manufacturer part number
XAE250
manufacturer part number
1923B
manufacturer part number
1925/7176

item weight

998 g
item weight
3 kg
item weight
3.66 kg
item weight
4.05 kg
item weight
4.5 kg
item weight
4.54 kg
item weight
1.05 kg

customer reviews

4.8 4.8 out of 5 stars 500 ratings 4.8 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 306 ratings 4.7 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 1, 666 ratings 4.7 out of 5 stars
customer reviews
4.7 4.7 out of 5 stars 382 ratings 4.7 out of 5 stars
customer reviews
4.6 4.6 out of 5 stars 265 ratings 4.6 out of 5 stars
customer reviews
4.5 4.5 out of 5 stars 52 ratings 4.5 out of 5 stars
customer reviews
4.5 4.5 out of 5 stars 108 ratings 4.5 out of 5 stars

model

CLA20505L
model
1925A
model
POWER1
model
XFMOT1G
model
XAE250
model
1923B
model
1925/7176

product dimensions

18.01 x 11 x 2.01 cm 997.9 g
product dimensions
-
product dimensions
12.6 x 18.8 x 27.2 cm 3.66 kg
product dimensions
12 x 19 x 33 cm 4.05 kg
product dimensions
16.5 x 9.5 x 29.3 cm 4.5 kg
product dimensions
-
product dimensions
6 x 11.5 x 18.5 cm 1.05 kg

Available On

Available On
Available On
Available On
Available On
Available On
Available On

Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.8
    1
    Comma
    17% Off

    Comma CLA20505L 5L 20W/50 Classic Motor Oil - Yellow

    Why we love it

    High viscosity for classic engines.
    Ideal for vintage car enthusiasts.
    Widely praised for superior protection.
    Main highlights
    • Premium Product
    • Conventional, multigrade engine oil,Multigrade Oil
    • API SE CC,20w50 motor oil, car oil,classic oil,
  • 9.7
    2
    Castrol

    Castrol Classic XL20w/50 engine oil 1 gallon

    Main highlights
    • For pre-1980 classic cars and motorcycles A conventional 20W-50 multigrade engine oil Formulated with high quality mineral oils plus selected additives Ideally suited to older technology and classic car engines Offers excellent oil consumption and a very high level of engine wear protection API: SF/CC
  • 9.5
    3
    Castrol
    19% Off

    Castrol POWER1 4T 20W-50 Motorcycle Oil 4L

    Main highlights
    • Suitable for all makes of 4-stroke bikes, both carburettor or fuel injected where API SJ (or below) and JASO MA or MA-2 are recommended.
    • Specifications: Mineral API SN JASO MA-2
    • Reduced slope of deposition during the entire oil change interval Reduces oil thickening due to increased oil temperatures Catalyst-suitable Optimum, combined protection of engine, gearbox and oil bath clutch
    • Allows the engine to develop the same power as when new, even after an extended duration of speed, high load, high temperature running
    • Advanced 4-stroke motorcycle engine oil formulation

Our ranking system

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Features

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Consumer Reviews

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.