does help cold start rough idle

No it doesn't. That's why I bought rev x was to help with my cold start idle on my 6.0 powerstroke. I had to replace 4 injectors.

Good for preventative maintenance? Or unnecessary if you have a small car with no problems...

It is perfect for preventive maintenance. However, for a small car we recommend you use one 4 fl. oz bottle of REV X High Performance Oil Additive.

How many quarts does one bottle treat?

I'm guessing about 7/8 quarts per bottle... I know I needed two bottles for my 6.0l Powerstroke which takes 15 quarts of oil.

What is the best rate for rev x? Oz to quart

The exact ratio is 1 fl. oz. of REV X High Performance Oil Additive to 1.5 qt. of oil. 1 Bottle will treat up to 6 quarts of oil.

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High Performance Oil Additive - 4 fl. oz. (4 Pack)

Product ID: 602551951

Details

Brand
REV X
Item weight
567 g
Liquid volume
16 Fluid
Manufacturer
REV-X
Unit count
16.0

🔥Reduces friction for max power

🧼Organic oil system cleaner

⚙️Treats up to 6 quarts oil

251314CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Elevate your engine’s performance—because your ride deserves the best!

QUIETER ENGINE OPERATION - Experience a noticeable drop in engine noise for a premium drive 🤫
MAXIMIZE ENGINE EFFICIENCY - Unlock smoother, more consistent power with extreme friction reduction ⚡
HIGHLY CONCENTRATED FORMULA - Just 4 fl. oz. treats up to 6 quarts of oil—powerful and economical 💧
ALL IN ONE OIL SYSTEM CLEANER - Organic detergent formula cleans without harsh chemicals 🧴
LONGER OIL LIFE FEWER CHANGES - Extend lubricant service intervals and save time & money ⏳

REV-X High Performance Oil Additive is a highly concentrated, organic formula designed to reduce friction, clean the entire oil system, and extend lubricant life. Suitable for up to 6 quarts of oil per 4 fl. oz. dose, it enhances engine efficiency, reduces noise, and prolongs oil change intervals, making it the ultimate upgrade for high-performance vehicles.

Specifications

ASIN	B00ADPHD02
Brand Name	REV X
Customer Reviews	4.7 4.7 out of 5 stars (1,845)
Item Weight	567 g
Liquid Volume	16 Fluid Ounces
Manufacturer	REV-X
Model Number	REV0404
Part Number	REV0404
UPC	856649005728
Unit Count	16.0 Milliliters

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