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Engine and Fuel Additives

Our Granville product range of engine and fuel additives are made of high-quality chemical blends for diesel and petrol engines that really work. Our range includes: Power Steering Stop Leak, Petrol Injector Cleaner, Diesel Oil Treatment, Stop Smoke for Oil, Catalytic Convertor, Diesel Particular Filter (DPF) Cleaner, Diesel Stop Smoke, Engine Flush and Diesel Injector Cleaner.
  • Granville 10k Stop Leak Power Steering Fluid - 375ml - JAR UK Industries
    Save 14%
    £6.49
    £5.60
    Incl.Vat

    Granville 10k Stop Leak Power Steering Fluid - 375ml

    10K Boost Power Steering Fluid will stop and prevent leaks in power steering systems conditioning the seals, it will also help to prevent power ste...

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    £6.49
    £5.60
    Save 14%
  • Granville Petrol Injector Cleaner - 265ml - JAR UK Industries
    £6.49
    Incl.Vat

    Granville Petrol Injector Cleaner - 265ml

    10K Boost Petrol Injector Cleaner is developed to remove deposits from the injector restoring the original spray pattern. 10K Boost Petrol Injecto...

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    £6.49
  • Granville Diesel Oil Treatment - 300ml - JAR UK Industries
    £6.49
    Incl.Vat

    Granville Diesel Oil Treatment - 300ml

    10K Boost Diesel Oil Treatment has been specifically formulated for use in diesel engines to reduce engine wear at cold start up, minimise deposit...

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    £6.49
  • Granville Stop Smoke For Oil - 300ml - JAR UK Industries
    £6.49
    Incl.Vat

    Granville Stop Smoke For Oil - 300ml

    10K Boost Stop Smoke For Oil is an engine oil treatment that when added to engine oil will seal the gaps between worn internal moving engine parts...

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    £6.49
  • Granville 10k Catalytic Convertor Cleaner - JAR UK Industries
    £9.18
    Incl.Vat

    Granville 10k Catalytic Convertor Cleaner

    10K Boost Catalytic Convertor Cleaner cleans and removes carbon deposits from the entire fuel system, injectors, valves and pistons which will resu...

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    £9.18
  • Granville 10k Diesel Particulate Filter (DPF) Cleaner - JAR UK Industries
    Save 23%
    £9.18
    £7.09
    Incl.Vat

    Granville 10k Diesel Particulate Filter (DPF) Cleaner

    10K Boost Diesel Particulate Filter (DPF) Cleaner is an organometallic diesel fuel additive that ensures complete & rapid regeneration of the d...

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    £9.18
    £7.09
    Save 23%
  • Granville 10k Diesel Stop Smoke - 265ml - JAR UK Industries
    £6.49
    Incl.Vat

    Granville 10k Diesel Stop Smoke - 265ml

    Diesel Stop Smoke is formulated to reduce smoke emissions from diesel engines and improve fuel economy. Benefits: Promotes maximum combustion eff...

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    £6.49
  • Granville 10k Engine Flush - 375ml - JAR UK Industries
    £5.35
    Incl.Vat

    Granville 10k Engine Flush - 375ml

    This 10K Boost Engine Flush from Granville is a special blend of detergents, dispersants and additives designed for addition to used engine oil pri...

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    £5.35
  • Granville 10k Diesel Injector Cleaner - 265ml - JAR UK Industries
    £6.49
    Incl.Vat

    Granville 10k Diesel Injector Cleaner - 265ml

    Diesel Injector Cleaner cleans the entire fuel system removing carbon deposits from injectors and prevents needles from seizing. Improves combustio...

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    £6.49