Site traffic information and cookies

We use cookies to collect and analyse information on our site's performance and to enable the site to function. Cookies also allow us and our partners to show you relevant ads when you visit our site and other 3rd party websites, including social networks. You can choose to allow all cookies by clicking ‘Allow all’ or manage them individually by clicking ‘Manage cookie preferences,’ where you will also find more information.

Manage cookie preferences

  1. HOME
  2. SERVICES
  3. VEHICLE MAINTENANCE
  4. CASTROL GUARANTEE
  5. FREQUENTLY ASKED QUESTIONS

FREQUENTLY ASKED QUESTIONS

Questions and answers to common queries about the Castrol Guarantee

Frequently asked questions
The Castrol Guarantee programme covers your engine from oil related mechanical failure.

Castrol Guarantee provides coverage for engine parts listed below.
  • Pistons and Rings
  • Turbo Bearings
  • Timing Chains
  • Cylinder Lining or Bore
  • Oil Pump
  • Rods and Rod Bearings
  • Balance Shafts & Push Rods
  • Cam Shaft & Bearings
  • Crankshaft & Bearings
  •  Valve Lifters
  • Rocker Arms and Pivots
  • Distributor Drive Gear (not applicable for diesel cars)
  • Wrist Pins & Bushings
  • Timing Gear or Sprockets
  • Valve Stems & Guides (Grinding adjustments excluded)
  • Valve Liners
  • Rockers Arms & Pivots

If your oil has been changed with Castrol EDGE, MAGNATEC or GTX products:


This guarantee lasts for twelve months from the oil change date, or until the car's odometer reading increases by 12,000 miles (or 20.000 kilometers for workshops in the Republic of Ireland), whichever is earlier.


This guarantee takes effect 30 days or 750 miles (or 1.000 kilometers for workshops in the Republic of Ireland) from the engine oil change date, whichever comes first, provided a valid registration is in place. A claim is only valid if all criteria are met, which are outlined in the terms and conditions.

Up to £3000 (or 3.500 € for workshops in the Republic of Ireland) in respect of any claim.

Vehicles with an odometer reading of over 75,000 miles (or 120.000 kilometers for workshops in the Republic of Ireland) at the date of the oil change only have coverage of 50% of the actual claim, subject to a £1,500 (or 1.750 € for workshops in the Republic of Ireland) limit.

A petrol or diesel vehicle may be eligible for this guarantee if it is a privately owned passenger car or light commercial vehicle; and if:

  • The vehicle has been driven for less than 100,000 miles (or 120.000 kilometers for workshops in the Republic of Ireland) and the vehicle was less than 12 years old at the time of the oil change;
  • The engine oil was changed with Castrol EDGE, MAGNATEC or GTX products at a participating Castrol Service workshop.

Have your oil changed using eligible Castrol EDGE, Castrol MAGNATEC or Castrol GTX products at a participating Castrol Service workshop and complete your registration on this website within seven days.

 

Please keep hold of your invoice as proof of service showing when the oil was changed.

No, you have to register via the Castrol Guarantee website within seven days of the oil change in order to benefit from the programme.
You will receive a confirmation email after successfully completing the online registration.

Please use the claim form on this website to register a claim and a member of the team will contact you.

You will be asked to provide:

  1. proof of your vehicles's service history showing that the oil has been changed at the recommended intervals by the vehicle’s manufacturer
  2. proof of service showing that the oil has been changed at a participating Castrol Service workshop up to 7 days prior to the Guarantee registration.

The mechanic in the workshop will assess your car’s engine to determine if this was a reason why it broke down. In some instances it may be necessary for the mechanic will take a sample of the oil to send it away to Castrol for used oil analysis testing to determine if the oil was at fault to cause engine failure.


You will be kept informed either by your mechanic at the Castrol Service workshop, or you will be contacted by a Castrol Hotline representative to talk you through further steps and the results of your claim.

This is at the discretion of the Castrol Service Workshop.