Nulon - problem solving products
Nulon has a product to help solve most minor mechanical problems. This quick fix guide will help you in determining the best product to use for the situation.
For further, more detailed information go to www.nulon.com.au/applications.php for a full applications guide.
ENGINES - PETROL, DIESEL OR LPG
Symptom or Application | Recommendation |
| Noisy valve lifters | Change oil and filter and add Nulon Lifter-Free and Tune-Up. (Part No. WLF) |
| Exhaust smoke on start-up (blue / grey colour) | Usually caused by hardened and worn valve stem seals. Treat with Nulon Engine Stop Leak. (Part No. ESL) |
| If smoke is excessive | Use Nulon Stop Smoke in petrol and diesel engines. Stop Smoke can also be combined with HP (Diesel Treatment) or WAW (Engine Treatment) (Part No. SS) |
| Glazed bores in diesel engines | Treat with Nulon Diesel Treatment at double the recommended treatment (Part No. HP) |
| Dirty oil and sludge formation inside the rocker cover | Flush with Nulon Engine Oil Flush and change oil and filter (consider changing the oil more frequently) (Part No. EOF) |
| General mechanical engine noise, e.g. bearings, pistons, timing chain, gudgeoned pins etc. | Diesel engines - treat with HP |
| If noise is excessive | Use Stop Smoke in diesel and petrol engines |
| Engine detonates (pings) particularly under load Note: All of the recommendations at right are based on the assumption that the engine is tuned correctly and within manufacturer's specifications. | Petrol engines using ULP fuel - treat with Nulon Octane Boost & Cleaner. |
| Black or dark brown exhaust smoke | Refer to fuel "systems" |
| High performance or modified petrol engines, LP gas and rotary engines | Use Nulon Engine Treatment with each oil change for maximum protection against wear |
| Petrol engines in sound / good condition and used for typical day-to-day driving | Use Nulon Long Term Engine Treatment for cost effective wear protection. |
| Worn petrol engine protection | Use Nulon Worn Engine Treatment (Part No. E10 or WAW) with each oil change |
| Diesel engine protection | Use Nulon HP in all diesel engines regardless of age or condition unless the engine suffers from a symptom found elsewhere in this chart |
AUTOMATIC TRANSMISSIONS
Symptom or Application | Recommendation |
| Poor or harsh changing of gears | Use Nulon Auto Trans Treatment |
| Minor leaks | Use Nulon Auto Trans Treatment |
POWER STEERING
Symptom or Application | Recommendation |
| Vibration felt through steering wheel | Use Nulon Power Steering Stop Leak (Part No. G65) |
| Fluid leak from pump, steering box or rack | Use Nulon Power Steering Stop Leak (Part No. G65) |
COOLING SYSTEMS
Symptom or Application | Recommendation |
| Engine overheats | If a cooling system is in good operating condition it should not overheat. The only course of action is to have the cause diagnosed and rectified |
| Cooling system is contaminated or dirty | Use Nulon Radiator Cleaner. Use as recommended when coolant is changed |
| Leaks | Leaks anywhere in a cooling system (except for hoses) should be treated with Nulon Radiator Sealer. Obviously it will not be effective on severe leaks. Remember that this is a temporary repair only to be used in emergencies |
GEARBOX & DIFFERENTIALS
Symptom or Application | Recommendation |
Protection of all gearboxes (helical, spur or worm drive) and differentials whether automotive, trucking, marine or industrial. (Does not include automatic transmissions) | Use Nulon Gear Box & Diff. This product has been proven to reduce wear by at least 50% in numerous tests. (Part No. G70) |
Difficult to change gears on cold mornings | Use Nulon G70 |
| Gear noise (gearbox or differential) | Use Nulon G70 |
| Bearing noise (gearbox or differential) | Use Nulon G70 |
| Oil seal leaks in either gearbox or differential | Use Nulon Engine Stop Leak at 60ml per litre of oil |
DIESEL FUEL SYSTEM
Symptom or Application | Recommendation |
Black exhaust smoke which is caused by over fuelling | Use Nulon Diesel Injector Cleaner. If smoke is not reduced after treating two full tanks it will be necessary to have the pump and/or the injectors serviced. |
Waxing (in cold climates). Usually this problem is experienced when there is an unexpected cold snap at the beginning of winter and engines are still being run on summer grade fuel. This problem can be overcome by adding heating oil to the diesel or petrol at 10% | Use Nulon Diesel Injector Cleaner which will assist in maintaining the integrity of the fuel. (Part No. DIC) |
| Fuel system corrosion | Use Nulon Diesel Injector Cleaner which contains very effective corrosion inhibitors. |
| Fuel system protection | Use Nulon Diesel Injector Cleaner on a regular basis to maintain entire fuel system. |
| High Fuel consumption | Using Nulon Diesel Injector Cleaner on a regular basis will preserve the efficiency of the entire system. In most instances the cost of Diesel Injector Cleaner will be offset by fuel savings. |
| Algae in fuel | Algae is identified as a stringy, sticky, black substance. It is usually first detected when it blocks the fuel filter. Algae only exists when there is water in the system. There is no simple treatment and professional assistance should be sought. |
PETROL FUEL SYSTEMS
Symptom or Application | Recommendation |
| Use Nulon Petrol Injector Cleaner or Total Fuel System Cleaner on a regular basis (Part No's PIC or TFSC) |
| Fuel injected engine has sticky accelerator | Use Nulon Carburettor and Throttle Body Cleaner to clean the throttle body. |
| Carburettor has visible carbon deposits in its throat | Use Nulon Carburettor and Throttle Body Cleaner to thoroughly clean the carburettor
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