Has anyone used this to stop your engine from smoking? if so did it help?

No I do not believe it will stop engine from smoking though if valve seals are worn and rings worn it may help I use it as it keeps lifter quiet!!

Does rislone high mileage formula engine treatment have zink zddp in it is it safe for catalyctic converters

It is safe for your catalytic converter but they have another product that has the Zinc which is the Rislone Hy-per Lube ZDDP Supplement

Is this safe to use at every oil change

I've used this as an additive ever since I hit 75,000 miles and I do the oil change every 3,500 miles there after.

How do you add it into crank case?

Thank you for your question, and for considering Rislone to help with your automotive needs. To add this product to your engine's crankcase, you would install it into the same opening where you would add engine oil. Do not overfill. If you have any other questions, or we can be of any further assistance, please 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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Engine Treatment

Product ID: 4470341

Details

Brand
Rislone
Liquid Volume
500 ml
Package Information
Bottle
UPC
078615041022
Vehicle Service Type
Car Truck

🔥Multi-grade formula for broad temp range

🤫Quiets noisy lifters & valves

🛠️Removes & prevents engine sludge buildup

B$23

Duties & taxes included

In stock

Sold byAmazon BruneiDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Silence the noise, unleash the power — drive with confidence!

NOISE NINJA - Penetrates deep to silence noisy lifters and valves, delivering a whisper-quiet ride.
SLUDGE SLAYER - Effectively dissolves and suspends harmful deposits to keep your engine running clean and efficient.
TRUSTED BY DRIVERS - Highly rated with over 2,000 reviews praising its instant engine quieting and performance boost.
WARRANTY FRIENDLY POWER - Made in the USA and safe for synthetic oils—won't void your vehicle’s warranty.
ULTIMATE FRICTION FIGHTER - Multi-grade formula ensures smooth oil flow and peak engine protection across all temperatures.

Rislone 4102 XTREME LUBE® Maximum Performance Engine Treatment is a 16.9 oz. universal-fit additive designed to reduce engine friction, remove sludge, and quiet noisy lifters and valves. Compatible with synthetic oils and safe for all cars and trucks, it helps maintain engine health without voiding warranties. Trusted by thousands, it delivers smoother, quieter rides and extends engine life.

Specifications

Asin	B0078661MK
Best Sellers Rank	#4,361 in Automotive (See Top 100 in Automotive) #11 in Engine & Oil Fluid Additives
Brand	Rislone
Customer Reviews	4.6 4.6 out of 5 stars (2,055) 4.6 out of 5 stars
Date First Available	February 11, 2012
Item Model Number	4102
Item Weight	1.06 pounds
Manufacturer	Bar's Leaks
Manufacturer Part Number	4102
Model	4102
Product Dimensions	1.9 x 3.4 x 7.6 inches

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