Can you use this product and the anti-friction product at the same time?

Hello, and thank you for your question. We appreciate you considering Rislone for your automotive needs. Since you don't specify which anti-friction product you are asking about, it's difficult for us to give you a complete answer. What we can say is this: Rislone High Mileage Compression Repair (part number 4447) IS compatible with Rislone Nano Prime Engine & Oil Additive (part number 4104), which uses Nano Tungsten and Moly to reduce friction up to 38%. We have not tested the Compression Repair with products from other manufacturers, so we are not able to address possible compatibility concerns in that area. We hope this satisfactorily answers your question. If you have any other questions or would like additional information on these or any of our products, please feel free to call our Tech Support Team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm Eastern time.

Can i use (mix) this product if i am using xl nanolube engine oil additive & nano treatment; reduces oil burning & engine smoke

Thank you for your question and for considering Rislone Compression Repair with Ring Seal (part number 4447) to help with your automotive needs. We cannot recommend these two products be mixed as we only have test data on compatibility within our own family of products. Since we don't test the efficacy or compatibility of our products alongside a competitors product, we can't advise you to use them together. We certainly appreciate your interest, but as a family run company for over 70 years, we pride ourselves on being honest with our customers - if we don't think we can help you, we will let you know, and in this case, we can't. If you have any other questions or we may provide additional information, please feel free to contact our Tech Support team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm Eastern time.

Do i put in every oil chang or is it a 1 time and done

Every oil change. I have an 87 Toyota Corolla with 200k, it takes 3 at this point. I have observed that it works after the first trip. It has eliminated blue smoke and low oil pressure. "Your mileage may vary".

Is it safe to use in engines with variable valve timing? Like a 1997 Honda Prelude

Thank you for your question, and for considering Rislone to help with your Honda. When installed following instructions, Rislone Compression Repair with Ring Seal (part number 4447) is safe to use in your Prelude. It can be used in all 4, 5, 6, 8, and 10 cylinder gasoline or diesel engines, and can be used with conventional, high mileage, and synthetic engine oils. Do not overfill. If you have any other questions, or would like any additional information, please feel free to call our Tech Support team at 1-800-345-6572. We are here to assist you Monday through Friday, from 8 am to 5 pm, Eastern time.

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⚡️ Unlock hidden engine power and drive with confidence!

ECO FRIENDLY ENGINE CARE - No harmful metals—safe for your engine and the environment while aiding emissions compliance.
POWER UP WITHOUT THE HASSLE - Restores lost horsepower and reduces engine blow-by for peak performance.
SEAL THE DEAL ON ENGINE WEAR - Fills scratches and grooves to renew worn piston rings and cylinder walls.
UNIVERSAL FIT FOR EVERY RIDE - Works seamlessly on gasoline and diesel engines across cars, trucks, motorcycles, and ATVs.
REVIVE YOUR ENGINES HEARTBEAT - Boost and stabilize compression for smoother, more powerful rides.

Rislone 4447 High Mileage Compression Repair with Ring Seal is a premium polymer formula designed to restore and stabilize compression in high-mileage engines. By filling scratches and grooves in piston rings and cylinder walls, it renews engine performance, reduces blow-by, and helps vehicles pass emissions tests. Compatible with gasoline and diesel engines, this additive is a must-have for maintaining power and efficiency in worn engines without harmful metals.

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Brand	Bar's Leaks
Vehicle Service Type	Car, Truck, Motorcycle, ATV, etc.
UPC	078615044474 078615444472
Automotive Fit Type	Universal Fit
Global Trade Identification Number	00078615044474
Manufacturer	Rislone
Size	Pack of 1
Model	4447
Item Weight	5.6 ounces
Product Dimensions	2.6 x 2.6 x 7.4 inches
Item model number	4447
Is Discontinued By Manufacturer	No
Manufacturer Part Number	4447

Rislone 4447 High Mileage Compression Repair with Ring Seal, 16.9 oz.

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