Polytetrafluoroethylene (Telfon) is an inert substance with an extremely low co-efficient of friction that has been used for many years as a friction and wear reducing additive.

This depends to the fuel type (petrol or diesel) and also the age and mileage on the vehicle. Worn Engine Repair (E10) for high mileage engines with some wear, Modern Engine Treatment (E20) for engines in good condition, Pro-Strength Extreme Performance Engine Treatment as a long term treatment. Diesel engines should use Pro-Strength Heavy Duty Diesel Engine Treatment.

It is recommended to only use one Nulon engine product at each oil change.

Nulon engine treatments can be used in used in four stroke boat and four stroke motorbike engines but at appropriate dosage rates (see labels for details)

No, all Nulon engine treatments are compatable with synthetic and mineral oils

No, oil changes should still occur at the intervals set by the vehicle manufacturer.

Nulon anti-wear Engine Treatments based on PTFE can be added to engine oil at any time but are best added to new engine oil after an oil change. Please follow directions of use for the Nulon Engine Treatment products to ensure your engine receives the best possible protection from wear and friction.

Yes, Nulon engine treatments will reduce cylinder blowby and reduce crankcase pressures. Engine Stop Leak (ESL) will also rejuvinate hardened oil seals

Worn Engine Repair (E10), Modern Engine Treatment (E20) are recommended at each oil change. For extra protection use Pro-Strength Extreme Performance Engine Treatment (petrol) and Pro-Strength Heavy Duty Diesel Engine Treatment.

Engine Oil Flush (EOF) or Pro-Strength Extreme Oil Flushshould be added to your engine oil just prior to changing your engine oil and directions of use on the rear of the bottle must be followed. The vehicle must not be driven when Engine Oil Flush is in the engine. 

No, all engine treatment products should only be used as per dosage recommendations as per directions. We would also recommend to not use more than one additive in an engine at one time.

White exhaust smoke on morning start-up is generally caused by leaking valve stem seals. Engine Stop Leak (ESL) would be the best product to use to reduce this smoke.

Nulon Engine Stop Leak (ESL) is an additive that can rejuvenate elastomer type engine seals that have hardened or shrunk. "rear main" and "timing cover" seals are typical areas for external oil leaks.

When an engine uses oil and blows blue smoke constantly, it indicates excessive piston or ring wear. Stop Smoke (SS) can reduce the amount of oil that passes worn rings and causes exhaust smoke.

Running a very thick oil can sometimes cause issues in modern engines. An area that is often overlooked when oil comsumption is a problem is hardened valve stem seals. Oil will bypass hardened seals and allow oil into the combustion chamber via the valve stems. Consumption as high as one litre per thousand kms can be caused by valve stem seal leakage. Nulon Engine Stop Leak (ESL) can rejuvenate hardened valve stem seals and should be used before moving to a thicker engine oil.

Most modern engine use hydraulic valve lifters which can cause tapping noise on start-up if they are sticking or have blocked oil passageways. Nulon Lifter-Free and Tune-Up (LFTU) can remove carbon and oil sludge deposits when added to your engine oil. 

Most Nulon engine additives will dilute with fuel, it is suggested to fill tank ASAP to dilute the product. Stop Smoke (SS) may block fuel pump pick-ups, if this product is accidently added to the fuel tank we suggest draining the fuel tank.