Targeted Oil Support for Higher-Mileage Engines.
BG RF-7 Oil Treatment is a professional engine-oil viscosity improver designed to help older and higher-mileage engines maintain oil pressure, compression and lubrication performance as internal wear develops.
As engines accumulate mileage, ring sealing, cylinder-wall condition, seals and hot-oil viscosity can all affect how well the engine maintains compression and controls oil consumption. RF-7 increases the viscosity characteristics of engine oil under operating temperature so the oil is less likely to thin excessively and pass worn sealing surfaces.
BG states that RF-7 also helps prevent oil oxidation, conditions seals to help prevent leaks, protects against wear, reduces blow-by, helps reduce oil consumption and exhaust smoke, and can reduce lifter and valve noise.
Six Reasons Drivers Choose BG RF-7
RF-7 is designed around the needs of aging engines where oil control, compression and wear protection can become more important.
Recommended for High-Mileage Vehicles
Well suited to older engines where wear, ring sealing and oil control have declined.
Improves Engine-Oil Viscosity
Helps increase hot-oil viscosity so the lubricant maintains a stronger protective film in worn engines.
Helps Prevent Oil Oxidation
Contains additives that resist oxidation, helping protect internal parts from corrosive damage associated with degraded oil.
Protects Against Wear
Supports a stronger lubricating cushion between moving components and helps protect worn cylinder-wall surfaces.
Decreases Blow-By
Helps seal piston rings more effectively so less combustion gas escapes past the rings into the crankcase.
Increases Compression
By improving ring sealing and hot-oil viscosity, RF-7 can help support compression and engine power in worn engines.
What BG RF-7 Is Designed to Help Improve
BG identifies several ways RF-7 can support aging engines.
As Engines Wear, Oil Control Can Become More Difficult.
RF-7 is designed for conditions commonly associated with older engines.
Worn Ring Sealing
Wear around piston rings and cylinder walls can allow combustion gases and oil to pass where they should not.
Hot-Oil Thinning
In a worn engine, oil that becomes too thin at operating temperature may pass rings and sealing surfaces more easily.
Oil-Pressure Concerns
BG RF-7 is formulated to increase viscosity and may help support oil pressure where the application is appropriate.
Aging Seals
RF-7 contains seal conditioners intended to help keep seals soft and pliable and reduce leakage.
How BG RF-7 Is Added
BG publishes dosage guidance based on crankcase capacity, and the final oil level must remain at the correct full mark.
Evaluate the Engine
We consider mileage, oil condition, oil pressure, consumption concerns and whether the engine shows signs of excessive sludge or mechanical problems.
Confirm Crankcase Capacity
The quantity depends on engine oil capacity and current oil level.
Add the Correct RF-7 Quantity
BG specifies 2 oz. for up to 2 quarts, 3 oz. for 2–3 quarts, 6 oz. for 3–4 quarts and 11 oz. for 4–5 quarts.
Verify Final Oil Level
RF-7 may be added during an oil change or between changes to bring the oil level to the full mark. The crankcase must not be overfilled.
When RF-7 May Be Worth Discussing With Our Team.
Higher-Mileage Vehicles
Higher-mileage vehicles may develop looser internal clearances, weaker ring sealing and increased oil use.
Oil Consumption
RF-7 can help reduce oil loss related to hot-oil thinning and ring sealing, but persistent loss should still be diagnosed.
Blow-By or Compression Loss
Where wear is contributing to ring leakage, RF-7 can help improve sealing and support compression.
Noise or Low Oil Pressure
BG states that RF-7 can increase oil pressure and reduce lifter and valve noise in appropriate applications.
RF-7 Supports Engine Oil — It Does Not Replace Proper Oil Service.
The correct engine oil and filter remain the foundation of engine lubrication. RF-7 is added to modify viscosity and provide added support in worn or higher-mileage engines.
Oil grade, capacity, service interval and any manufacturer requirements still need to be considered before treatment.
A Corrective Oil Treatment for Aging Engines.
BG distinguishes RF-7 from routine maintenance additives such as BG RF-7 Oil Treatment. RF-7 is aimed more directly at maintaining performance in engines already showing symptoms associated with wear.
BG has described RF-7 as particularly useful where worn ring lands or cylinder-wall areas allow hot oil to thin and pass the rings. By increasing the oil's viscosity characteristics under operating temperature, RF-7 can help create a stronger oil cushion, reduce oil loss and support compression.
RF-7 can be useful when an aging engine remains a suitable candidate for continued operation but shows wear-related symptoms.
High-Mileage Engine Care With Clear Guidance.
RF-7 works best when it is used in the right engine, for the right reason, and in the correct amount.
Our team can evaluate mileage, oil condition, consumption concerns and crankcase capacity before recommending RF-7.
Common Questions About BG RF-7
BG RF-7 is a professional engine-oil viscosity improver designed to support older or worn engines. BG says it helps increase compression and power, reduce blow-by, condition seals, increase oil pressure and protect against wear.
RF-7 is particularly relevant to older and higher-mileage engines where internal wear, ring sealing and oil control may have deteriorated. Our team can help determine whether it is appropriate for your vehicle.
BG says RF-7 increases oil viscosity and helps seal piston rings. Better ring sealing can help increase compression and reduce blow-by in engines affected by wear.
BG states that RF-7 can help reduce oil consumption and exhaust smoke. However, substantial oil loss can also indicate leaks or internal mechanical wear that should be diagnosed.
Yes. BG states that RF-7 contains additives that keep engine oil from oxidizing and help protect internal parts from corrosive damage.
BG states that RF-7 is compatible with petroleum-base oils, including synthetic and non-synthetic engine oils.
BG specifies 2 oz. for up to 2 quarts, 3 oz. for 2–3 quarts, 6 oz. for 3–4 quarts and 11 oz. for 4–5 quarts. The crankcase must not be overfilled.
No oil treatment can reverse mechanical wear. RF-7 is designed to help maintain performance by improving hot-oil viscosity, sealing support and lubrication. Engines with severe mechanical damage or excessive sludge still require proper diagnosis.
Support Your High-Mileage Vehicle With Complete Engine Care.
Ask Whether BG RF-7 Is Right for Your Engine.
Talk with Georgia Fuel & Treats about BG RF-7 in Silver Spring, Maryland.