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Engine Oil

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OIL00004/5KIT2
Product Information
Product Information
Mobil 1 Engine Oil 0W/40 Fully Synthetic New Life Multi pack 10L

Multi pack 2 x 5L Bottles

Mobil 1 0W-40 is recommended for all types of modern vehicles, especially high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel injected engines found in passenger cars, SUVs, light vans and trucks.

Mobil 1 0W-40 is especially suitable for extreme conditions, where conventional oil often cannot perform.

Mobil is not recommended for 2-Cycle or aviation engines, unless specifically approved by the manufacturer.

Everything you need to know about oil please see
Porsche Oils overview




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

OIL00004
0W
0W-40
00004330521
00004330119
00004330121
157717
153669

The product you are viewing cross references to these numbers
OIL00004/5KIT3
Product Information
Product Information
Mobil 1 Engine Oil 0W/40 Fully Synthetic New Life Multi pack 15L

Multi pack 3 x 5L Bottles

Mobil 1 0W-40 is recommended for all types of modern vehicles, especially high-performance turbo-charged, supercharged gasoline and diesel multi-valve fuel injected engines found in passenger cars, SUVs, light vans and trucks.

Mobil 1 0W-40 is especially suitable for extreme conditions, where conventional oil often cannot perform.

Mobil is not recommended for 2-Cycle or aviation engines, unless specifically approved by the manufacturer.

Everything you need to know about oil please see:
Porsche Oils overview




Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

OIL00004
0W
0W-40
00004330521
00004330119
00004330121
153669
157717

The product you are viewing cross references to these numbers
1928G
Product Information
Product Information
Castrol classic Engine Oil 10W/40 GTX 5ltr - Mineral engine oil

5ltr Tin

CASTROL GTX CLASSIC 10W/40

Liquid Engineering from Castrol Classic Oils - the original is back.

Brought to you by Castrol Classic oils, Castrol GTX Classic 10w/40 is a high quality mineral engine oil for vehicles from 1978 to 1993. Produced to original formulation as specified in motor manufacturers’ vehicle handbooks. Containing anti-wear and anti-corrosion additives to provide high levels of protection necessary for older technology vehicles.

Castrol GTX Classic protects classic engines against problems like sludge, helping to extend the life of your mechanicals. With GTX Classic in your engine, there’s a great road ahead.

Castrol GTX Classic 10w/40, the original ‘Liquid Engineering’ for younger and modern classics:

  • Mineral 10w/40, suitable for vehicles 1978 to 1993 where a 10w/40 oil is specified
  • Period correct balanced additives for superior wear and corrosion protection, including ZDDP
  • Can be used in vehicles either with or without a catalytic converter
  • Suitable for both naturally aspirated and turbo-charged vehicles
  • Original handbook recommendation for many vehicles
  • Supplied in original style 5ltr can
  • API: SG



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1928G
10W-40
10W
10W 40

The product you are viewing cross references to these numbers
1925
Product Information
Product Information
Castrol classic Engine Oil 20w/50 XL 1 Gallon - Mineral engine oil

1 Gallon (4.54 Ltr) Tin

CLASSIC XL 20w/50

Castrol Classic XL20w/50 is a premium multigrade engine oil of good all round performance.  Formulated with high quality mineral oils, plus carefully selected additives, it is ideally suited to older technology and classic car engines.

  • 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



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

1925
20w

The product you are viewing cross references to these numbers
DISPLAYING 1 to 4 (of 48 products)
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About Engine Oil

Premium Engine Oil for Cooling, Protection & High-Performance Efficiency

Engine oil plays a crucial role not only in lubrication, but also in controlling engine temperature, reducing friction and protecting vital internal components. High-performance oils are engineered to withstand the intense heat and stress generated by modern engines—especially in performance and motorsport applications. Whether driving daily, touring, or taking your car on the track, using the correct engine oil ensures efficient cooling, reliable lubrication and long-term engine durability.

A well-maintained oil system helps the engine run cooler, smoother and more efficiently, preventing heat-related failures and maintaining performance integrity.

What Engine Oil Does

Engine oil performs several vital roles within the cooling and lubrication system:

  • Reduces friction between moving engine components
  • Carries heat away from pistons, bearings, cylinder walls and the crankshaft
  • Maintains stable oil pressure for consistent lubrication
  • Prevents metal-on-metal contact, reducing wear and extending engine life
  • Minimises sludge and deposit formation through detergents and additives
  • Supports turbocharger longevity by cooling and lubricating the turbo core
  • Improves fuel efficiency through reduced mechanical drag

High-quality oil is essential for all engines, especially high-revving, turbocharged or air-cooled engines that rely heavily on oil for cooling.

Why Engine Oil Breaks Down or Fails

Engine oil degrades over time due to heat, contamination and mechanical stress. Common causes of oil failure include:

  • Thermal breakdown from extreme operating temperatures
  • Oxidation, causing sludge and varnish deposits
  • Fuel dilution, reducing viscosity and protection
  • Contamination from debris, blow-by gases or moisture
  • Shear breakdown reducing oil’s ability to maintain pressure
  • Old or incorrect oil grades, unable to meet engine demands
  • Extended service intervals leading to depleted additives

Symptoms include increased engine noise, rising temperatures, low oil pressure warnings, rough running or visible oil darkening and thickening.

Why You Should Replace Your Engine Oil Regularly

Replacing worn or degraded oil with high-quality, precision-formulated lubricants ensures optimal cooling, performance and engine protection.

Benefits include:

  • Improved cooling efficiency and heat management
  • Reduced internal wear and longer engine lifespan
  • Stable oil pressure and consistent lubrication
  • Enhanced performance for turbocharged or high-output engines
  • Cleaner internals with reduced sludge and carbon buildup
  • Better throttle response and smoother running
  • Protection under track, towing or spirited driving conditions

Fresh oil is one of the simplest yet most vital maintenance steps to keep your engine safe and performing at its best.

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