Four-Stroke Engine Oils
Classic 20W/50 Multigrades (Mineral base)
Classic 20W/50 Multigrades (Mineral base)
Classic Oils of Aylesbury stock a wide range of 20W50 oils for your classic vehicle including oil dedicated to the classic Mini. If you're looking for a replacement for Duckhams, we can point you towards the best of the rest!
Other Classic Multigrades (Mineral base)
Other Classic Multigrades (Mineral base)
If you want a classic multigrade in a viscosity other than 20W50, we stock Classic oils in several viscosities which can help to address specific issues for your classic car or motorcycle
Classic Multigrades (Synth base)
Classic Multigrades (Synth base)
Synthetic-based engine oils designed specifically for your classic vehicle's needs. Ideal for racing and hard use.
Motorcycle-specific Engine Oils
Motorcycle-specific Engine Oils
Motorcycle Engine Oils designed for modern machinery and wet clutches
SAE 20 Monogrades
SAE 20 Monogrades
Products by Application
SAE 30 Monogrades
SAE 30 Monogrades
Products by Application
SAE 40 Monogrades
SAE 40 Monogrades
Products by Application
SAE 50 Monogrades
SAE 50 Monogrades
Products by Application
Competition Engine Oils
Competition Engine Oils
Choose what viscosity and type of oil (straight or multigrade) is most suited to your classic or vintage vehicle.
'Year-Round' mixed cases
'Year-Round' mixed cases
Choose what viscosity and type of oil (straight or multigrade) is most suited to your classic or vintage vehicle.
Flushing and Running-In Oils
Flushing and Running-In Oils
Products by Application
Modern Multigrades
Modern Multigrades
Products by Application
Four-Stroke Engine Oils
new penrite enviro+ 3w-30
Penrite Enviro+ C3 5W-30
Premium Synthetic 5W-30 Modern Engine oil designed for engines using mid SAPS technology to C3 Performance Levels (20 Litre EnviroBox)
£129.95
penrite classic plus 15w-50
Penrite Classic Plus 15W-50
Very high quality, mid-detergent engine oil (5 litre)
£29.95
castrol magnatec stop-start 5w-30 c3
Castrol Magnatec Stop-Start 5W-30 C3
Magnatec Stop-Start is an Engine Oil for modern traffic, designed for the rigours of stop-start, on-off driving conditions (5 Litres)
£42.95
classic oils cross country ep20w-50
Classic Oils Cross Country EP20W-50 GL4
A universal oil for Land Rover Series 1, 2 and 3 engines, gearboxes and diffs (25 litre)
£129.95
penrite hpr 50
Penrite HPR 50
High Performance Mineral, SAE 40W-70 engine oil with full zinc (5 Litre)
£34.95
penrite premium mineral 15w/40
Penrite Premium Mineral 15w-40
Very high quality mineral oil, recommended for Mazda rotary engines (5 litre)
£27.95
classic oils heritage 20w50 from 15.50 per 5 litre!
Heritage 20W50
Classic Oils' own high-zinc classic 20W50 mineral oil with 1300ppm ZDDP (5 litre, 25 litre)
£23.95
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classic oils hot hatch 10w-40
Classic Oils Hot Hatch 10W-40
Semi synthetic 10W-40 engine oil suitable for later classics, including many Hot Hatches from the 1980's and 90's (5 litre, 25 litre)
£25.95
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classic oils beetlejuice hd30
Classic Oils Beetlejuice HD30
Specially blended Heavy Duty oil for earlier VW Beetles and Campers requiring an SAE30 (5 litre, 25 litre)
£23.95
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our best selling classic multigrade.  choice of 1 litre, 5 litre, cases of 4x or 8x 5 litres and 25 litre drums
Morris Golden Film 20W-50
Our best selling classic multigrade. Choice of 1 litre, 5 litres and 25 litre drums.
£22.95
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a high-specification classic multigrade (1 litre, 5 litre, case of 4 x 5 litres, 25 litre drum)
Millers Classic Pistoneeze 20w50
A high-specification classic mineral multigrade (1 litre, 5 litre, 20 litre drum)
£35.95
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a light monograde lubricant, ideal for primary drive chaincases (5 litres and case of 4 x 5 litres)
Morris Golden Film SAE 20
A light monograde lubricant, ideal for primary drive chaincases (5 litres)
£25.95
Penrite's High Performance 20W/60 broad spectrum Classic multigrade (5 litres, 4 x 5 litres, 20 litre drum)
Penrite Classic Light
Penrite's High Performance 20W-60 broad spectrum Classic multigrade (1L, 5L, 20L)
£32.95
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a classic 20w/50 beloved by many (1 gallon tins and case of 4 x 1 gal)
Castrol XL 20w/50
A classic 20w/50 beloved by many (1 gallon tins)
£36.95
classic oils muscle car 10w-30
Muscle Car 10W-30
Low viscosity multigrade suitable for many American V8's of the 1960's and 70's. (5 litre, 25 litre)
£28.95
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A low detergent mongrade engine oil loved by many (1 gal and 4 x 1 gal)
Castrol XL30
A low detergent monograde engine oil loved by many (1 gal)
£36.95
An engine oil for Minis and other combined engine / gearbox applications (5 litres and 4 x 5 litres)
Millers Classic Mini Oil 20w50
An engine oil for Minis and other combined engine / gearbox applications (5 litres)
£36.95
sae 30 classic monograde engine oil (1, 5, 4x5 litre case and 25 litres)
Morris Golden Film SAE 30
SAE 30 classic monograde engine oil (1, 5 and 25 litres)
£25.95
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penrite hpr40 high performance 25w/70 classic motor oil (5 litres, 4 x 5 litres, 20 litre drum)
Penrite Classic Medium
Penrite High Performance 25W/70 Classic motor oil (5 litre, 20 litre drum)
£32.95
A traditional summer-weight mongrade oil for many classic applications (1 gal and 4 x 1 gal)
Castrol XXL40
A traditional summer-weight mongrade oil for many classic applications (1 gal)
£36.95
a straight 40-weight oil, available from stock in 1, 5, 4x5 case and 25 litre sizes
Morris Golden Film SAE 40
A straight 40-weight oil, available from stock in 1, 5 and 25 litre sizes
£25.95
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high performance 40/70 classic motor oil formulated to replace sae50 (5 litres and 4 x 5 litres)
Penrite Classic Heavy
High Performance 40-70 classic motor oil formulated to replace SAE50 (1 litre, 5 litre)
£32.95
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semi synthetic engine oil for classic performance and sports car engines (5 litres,4 x 5 litres, 25 litre drum)
Millers Classic Sport 20w50
Semi synthetic engine oil for classic performance and sports car engines (5 litres, 20 litre drum)
£42.95
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millers classic sport 20w60 5 litre
Millers Classic Sport 20w60
Extra high performance semi synthetic 20w60 (5 litre)
£42.95
sae 50 classic monograde engine oil (1, 5, case of 4 x 5 litres, 25 litre drum)
Morris Golden Film SAE 50
SAE 50 classic monograde engine oil (1 litre, 5 litre, 25 litre drum)
£25.95
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A GL4 mineral oil suitable for combined engine/gearbox applications (5 litre, case of 4x5 litre)
Penrite Classic Mini 20W/50
A GL4 mineral oil suitable for combined engine/gearbox applications (5 litre, 20 litre drum)
£32.95
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Mineral based low detergent SAE 50 monograde engine oil (1 gal and cases of 4 x 1 gal)
Castrol GP50
Mineral based low detergent SAE 50 monograde engine oil (1 gal)
£36.95
a fully synthetic 20w50 with high zinc levels for racing (5 litres and 4x5 litres)
Millers Classic Sport High Performance 20w50
A fully synthetic 20W50 with high zinc levels for racing (5 litre)
£54.95
Famous Castrol 'R', now used either as a competiton lubricant or as a perfume agent in petrol! (1 litre or box of 12 x 1 litre)
Castrol R40
Famous Castrol 'R', now used either as a competiton lubricant or as a perfume agent in petrol! (1 litre, 12x1 litre)
£17.95
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an advanced sae 40 castor blend for petrol and methanol applications (5 litre and case of 4 x 5 litre)
Morris Race C40 (Formerly MLR 40)
An advanced SAE 40 castor blend for petrol and methanol applications (5 litre)
£47.95
Engine oil for vehicles originally specifying a Light Grade Oil or a SAE 20 or 30
Penrite Shelsley Light
Engine oil for vehicles originally specifying a Light Grade Oil or a SAE 20 or 30 (5 Litre)
£32.95
A semi-synthetic oil ideal for racing Minis, including those with LSDs (5 litres, 4 x 5 litres)
Millers CTV Mini 20w/50
A semi-synthetic oil ideal for racing Minis, including those with LSDs (5 litres)
£47.95
Engine oil for vehicles originally specifying a Medium Grade Oil or a SAE 40 (5 Litre, 4 x 5 litres, 20 litre drum)
Penrite Shelsley Medium
Engine oil for vehicles originally specifying a Medium Grade Oil or an SAE 40 (5 litre)
£32.95
millers css 20w60
Millers CSS 20w60
High performance competition semi-synthetic 20w60 engine oil (5 litre)
£44.95
A replacement for SAE 50 Engine oil in vehicles manufactured between 1920 and 1950 (5 litre, 4 x 5 litre)
Penrite Shelsley Heavy
A replacement for SAE 50 Engine oil in vehicles manufactured between 1920 and 1950 (5 litre)
£32.95
A fully synthetic triple ester competition oil (5 litres, 4 x 5 litre)
Millers CFS 10w40
A fully synthetic triple ester competition oil (5 litre)
£51.95
a light to medium engine oil for early lubrication requirements
Penrite Heritage LTM
A Light to Medium engine oil for early lubrication requirements (5 litre)
£29.95
Full synthetic '3 ester' formulation. For larger race and rally engines (5 litre or case of 4 x 5 litre)
Millers CFS 10w60 NT+
Full synthetic '3 ester' formulation. For larger race and rally engines (5 litre)
£74.95
a specific lubricant for use in canal boat engines, including where a 15w/40 is specified (5 litre, 4 x 5 litre)
Morris Classic Marine 10w/40
A specific lubricant for use in canal boat engines, including where a 15w/40 is specified (5 litre)
£27.95
millers cfs 15w60
Millers CFS 15w60
Competition fully synthetic oil for engines in highly stressed endurance conditions (5 litre)
£53.95
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