My car only has a ten gallon tank. Would it be safe to add the whole bottle?

You can use the whole bottle, or make it go farther buy using half a bottle and two full tanks of gas

Does it work in diesels?

I would contact the company & ask them. Here is the link to their contact information: https://lucasoil.com/contact

Lucas Oil 10669 Deep Clean Fuel System Cleaner 5 25

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

¥5894

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⛽ Revive your ride — clean fuel, clean power, clean conscience!

ECO FRIENDLY PERFORMANCE - Lowers NOx emissions and allows use of lower octane fuel
ENGINE LONGEVITY SUPPORT - Lubricates fuel pumps and rings to extend cylinder life
POWER EFFICIENCY BOOST - Enhances acceleration and fuel economy with special additives
TRUSTED TESTED FORMULA - Fleet and OEM tested with 4.7-star rating from 500+ users
COMPLETE FUEL SYSTEM DETOX - Targets injectors, valves, piston tops & more for a deep clean

Lucas Oil 10669 Deep Clean Fuel System Cleaner is a 5.25 oz. bottle designed to thoroughly clean your vehicle’s entire intake and combustion system. It removes carbon deposits, reduces knocking, improves fuel economy, and boosts power while lowering harmful emissions. Safe for oxygen sensors and alcohol-free, it lubricates key engine components to extend life. Recommended every 3,000-4,000 miles, this USA-made formula is fleet and OEM tested, trusted by thousands for a smoother, more efficient drive.

Specifications

ASIN	B006U5SAI8
Best Sellers Rank	#185,865 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #601 in Engine Oils for Cars
Brand	Lucas Oil
Brand Name	Lucas Oil
Container Type	Bottle
Contains Liquid Contents	Yes
Contains Liquid Contents?	Yes
Country of Origin	USA
Customer Reviews	4.7 out of 5 stars 534 Reviews
Global Trade Identification Number	00049807106690
Included Components	Deep Clean/24x1/ 5.25 Ounce
Item Type Name	Deep Clean/24x1/ 5.25 Ounce
Item Volume	155 Millilitres
Item Weight	127 Grams
Manufacturer	LUCAS OIL
Model Number	10669
Net Quantity	1.0 Count
Number of Items	1
Part Number	40669
Size	1 count (Pack of 1)
UPC	049807406691
Unit Count	1.0 Count

Reviews

T**L

Good

28.10.2025

L**G

No sé si funciono

Pues no me quedo claro si funcionó o no pero si note una respuesta más potente lo que duró el tanque con el botellín este

30.12.2019

T**N

My go to!

Load this up and run your car hot, good old Italian tune up. Use every 3 months or after using cheaper fuel or fueling up from sketchy gas stations.

5.12.2025

A**I

Good

9.03.2025

B**8

Worked Immediately

It worked right away. I experienced some hesitation when I drove to about 40 mph. After pouring this into the gas tank my van immediately drove better.

12.06.2026

D**D

Great

Great product

15.05.2026

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Great experience from order to delivery. Highly recommended!

1 week ago

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¥5894

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago