The right additive
for every engine
Two dedicated ranges – gasoline and diesel – plus engine care. One 350 ml bottle per tank, no measuring, no guessing.
Gasoline or diesel? Know the difference
The two ranges are formulated for different fuels and different engine problems. They are not interchangeable.
| Gasoline Range | Diesel Range | |
|---|---|---|
| Engine | Spark ignition – gasoline 80 / 92 / 95 | Compression ignition – diesel (solar) |
| Key fuel property | Octane – resistance to knocking | Cetane – ignition quality |
| Typical problems | Injector deposits, rough idle, knocking, ethanol moisture | Injector coking, black smoke, hard cold start, pump wear |
| Dose | 1 bottle (350 ml) per tank up to 60 L | 1 bottle (350 ml) per tank up to 80 L |
| Hazard class | Flammable liquid | Combustible liquid |
| Do not use in | Diesel engines | Gasoline engines |
Gasoline Range
Gasoline engines depend on a clean, precise injector spray and on fuel that resists knocking. The SOLVAR gasoline range keeps injectors clean, restores performance, raises octane and protects against ethanol-related problems.
350 mlInjector Cleaner
A concentrated gasoline tank additive that cleans clogged fuel injectors and intake valves. One 350 ml bottle treats up to 60 L for smoother idle, sharper response and lower consumption.
350 mlOctane Booster
A gasoline additive that raises the octane rating and suppresses engine knocking. One 350 ml bottle treats up to 60 L – ideal for older, tuned and high-compression engines.
350 mlFuel System Cleaner
A high-concentration, single-tank cleaner for the complete gasoline fuel system, with twice the detergent of SOLVAR Injector Cleaner. Restores lost power and smooth idle.
350 mlEthanol Fuel Treatment
Helps protect engines and fuel systems running on ethanol-blended gasoline against moisture and ethanol corrosion, and improves the stability of stored fuel. One 350 ml bottle treats up to 60 L.
Diesel Range
Diesel engines ignite fuel by compression, so ignition quality (cetane), injector cleanliness and fuel lubricity matter most. The SOLVAR diesel range cleans injectors, boosts cetane and protects the high-pressure pump.
350 mlDiesel Injector Cleaner
A concentrated diesel tank additive that cleans injector nozzles and prevents deposits in common-rail and conventional diesel engines. One 350 ml bottle treats up to 80 L.
350 mlDiesel Treatment
An all-in-one diesel additive that boosts cetane, improves lubricity and protects the fuel system. One 350 ml bottle treats a full tank of up to 80 L.
Engine Care
Complete the programme at service time: clean the oil circuit before every oil change and the cooling system before every coolant change.
350 mlRadiator Cleaner
A neutral (pH ≈ 8) cooling system cleaner used during coolant change. Its citrate and gluconate chelating formula helps loosen rust, scale and sludge so they flush out and coolant flow is restored, while benzotriazole protects copper and brass.
350 mlEngine Flush
A pre-oil-change cleaner added to the old engine oil to dissolve sludge and varnish so they drain out with the used oil. One 350 ml bottle per sump of up to 5 L, 10 minutes at idle.
With the engine cold, add the bottle to the radiator, run 10 minutes with the heater on maximum, let it cool, drain, flush with clean water and refill with fresh coolant.
Warm the engine, add the bottle to the old oil, idle 10 minutes (do not drive), drain while warm, change the filter and refill.
What is your car telling you?
Pick a symptom to see the recommended product.
How to use – fuel additives
Switch off the engine.
Pour the whole bottle into the tank before refuelling – the fuel flow mixes it.
Fill up: up to 60 L gasoline or up to 80 L diesel.
Drive normally until the tank is nearly empty – the treatment works while you drive.
Maintenance schedule
| Product | Purpose | Dose | When |
|---|---|---|---|
| Injector Cleaner | Regular maintenance | 1 bottle per up to 60 L | Every 3,000 – 5,000 km |
| Octane Booster | Octane increase | 1 bottle per up to 60 L | When knocking occurs / high load |
| Fuel System Cleaner | Intensive cleaning – double strength | 1 bottle per up to 60 L | Every 10,000 km or at each service |
| Ethanol Fuel Treatment | E5 – E15 fuel protection | 1 bottle per up to 60 L | Each fill-up or before storage |
| Diesel Injector Cleaner | Injector cleaning & lubricity | 1 bottle per up to 80 L | Every 3,000 – 5,000 km |
| Diesel Treatment | Cetane boost, easier starting, less smoke | 1 bottle per tank up to 80 L | Every 3,000 – 5,000 km |
| Radiator Cleaner | Cooling system cleaning | 1 bottle per cooling system up to 10 L | Before every coolant change |
| Engine Flush | Oil circuit cleaning | 1 bottle per oil sump up to 5 L | Before every oil change |
Safety first
- Keep out of reach of children.
- If swallowed: do NOT induce vomiting – call a poison centre or doctor immediately.
- Keep away from heat, sparks and open flames. No smoking while refuelling.
- Add only to the fuel tank (or as directed) – never to engine oil unless it is Engine Flush.
- Never mix the ranges: gasoline products go in gasoline engines only, diesel products in diesel engines only.
Technical & safety data sheets
TDS & MSDS files are available on request and sent after admin approval.
Frequently asked questions
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