Do you have to flush the transmission to use this,or can l just add this to existing transmission fluid, thanks for the feedback

After 50,000 miles you should change your transmission fluid (and filter unless it's a screen type) if it's still bright red. But If it's very dark red or even worse black then flush the transmission it's money well spent to save your transmission. Keep in mind it will look like red metallic paint that's just part of normal wear. If it's bright red then just drain some transmission fluid to keep it at the proper level. Overfilling an automatic transmission by just a few ounces can cause it to leak. Best of luck to you.

Does this work on a Prius?

I believe it works on any automatic transmission. Call Lucas Oil company to make sure and/or Toyota

he can use on any transmission fluid?

Yes it's compatible with conventional and full synthetic transmission fluids note that this product is not compatible with CVT fluid

do you have to drain any fluid

Check your fluid levels first, always! If it's full, or close, then drain the appropriate amount. 32oz bottle, drain 32ozs. Keep the old fluid just in case if you do a drain & fill on a trans that hasn't been serviced for 10+ years or over 30k-50k miles. That fluid may contain clutch material that's allowing everything to work properly, and fresh fluids can disrupt the fine fluid friction balance needed for an Auto Trans to work correctly.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Lucas Oil 10441 Automatic Transmission Fluid Conditioner - 20 oz.

Lucas Oil 10441 Automatic Transmission Fluid Conditioner - 20 oz.

Product ID: 228256354

Details

Brand
Lucas Oil
Item Weight
0.55 Pounds
Liquid Volume
1 Fluid Ounces
Material
Synthetic
Package Information
Bottle

🔇Noise & shudder reduction

⚙️Smooth shifting tech

🛢️Universal ATF compatibility

€ 68.46

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

Secure transaction

Description

⚙️ Shift into smooth — don’t let your transmission hold you back!

TRUSTED BY PROS - Backed by 1,200+ rave reviews and made in the USA for quality you can count on.
ALL ATF FRIENDLY - Works flawlessly with both conventional and synthetic transmission fluids.
VERSATILE APPLICATION - Perfect for both new and older automatic transmissions—keep your ride in peak condition.
SEAMLESS GEAR TRANSITIONS - Experience buttery smooth shifts that elevate your drive.
WHISPER QUIET PERFORMANCE - Dramatically reduces transmission noise and shudder for a refined ride.

Lucas Oil 10441 Automatic Transmission Fluid Conditioner is a 20 oz synthetic additive designed to improve shifting performance, reduce noise and shudder, and is compatible with all automatic transmission fluids except CVT types. Ideal for both new and older transmissions, it enhances gear changes and prolongs transmission life, trusted by thousands of users nationwide.

Specifications

ASIN	B003JU71YG
Best Sellers Rank	#287,595 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #296 in Gear & Transmission Fluids
Brand Name	Lucas Oil
Compatible Material	Automatic Transmission Fluid
Container Type	Bottle
Country of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (1,225)
Global Trade Identification Number	00049807104412
Included Components	Lucas Oil 10441 Automatic Transmission Fluid Conditioner - 20 Ounce
Item Form	Liquid
Item Type Name	Lucas Oil 10441 Automatic Transmission Fluid Conditioner - 20 Ounce
Item Weight	0.55 Pounds
Liquid Volume	1 Fluid Ounces
Manufacturer	Lucas Oil
Material Type	Synthetic
Model Number	10441
Number of Items	1
Number of Packs	1
Part Number	LUCA10441
Recommended Uses For Product	Automotive
Specific Uses For Product	Prevent Corrosion
UPC	049807104412 049807804411
Unit Count	20.0 Fluid Ounces

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.