What quantity am i getting? what does "3x1/5q" in the title description mean?

5 quarts. I don't know what 3x1/ means, but it's 5 quarts. You can see it on the label in the picture.

can i use this on 1975 chevy k20 pickup truck w/400 small block? mostly cruising around town

The main reason I use this oil product is because it meets/exceeds the zinc additive levels required for the flat tappet cam on my GM 327 V8. The engine is very happy with it and oil changes show exceptional wearability. That said, you'll want to conduct your own evaluations of oil products for your engine application.

Can use this in a 67-68. Chevy 350 engine for my 59 chevy truck?

Yes, that engine needs zinc. Flat tappet

Is this full synthetic?

If you just take the time to read it all.. Lucas oil for Hot Rods & Muscle cars is recommended for most engines from the 50s,60s &70s that were designed to use a conventional oil like what was available back then...It has additives like zinc that are not found in today's oils & therefore,it is NOT compatable with any cars with catalatic converters,(emissions controll system) & No,it is not a synthetic oil, it is conventional, which means it is petroleum based.

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10683 Hot Rod & Classic Car SAE 10W-40 Motor Oil - 5 Quart

Product ID: 277772882

Details

Brand
Lucas Oil
Liquid volume
5 Quarts
Package information
Bottle
SAE J300 Viscosity Grade
10W-40
Vehicle service type
Car

⏳Extended drain intervals save maintenance time

⚙️SAE 10W-40 viscosity for versatile temp performance

🛡️Rust & corrosion resistance for engine longevity

1026.58 DT

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Description

🛠️ Keep your classic roaring and flawless — because legends deserve premium care!

EXTENDED OIL LIFE - Longer drain intervals mean fewer oil changes and more time on the road.
COOL QUIET OPERATION - Reduces engine noise and heat for a smooth, refined driving experience.
MAXIMIZED ENGINE PROTECTION - Advanced formula guards against rust and corrosion, extending engine life.
IMPROVED OIL PRESSURE IN WORN ENGINES - Boosts performance and reliability even in high-mileage classics.
ENGINEERED FOR CLASSIC MUSCLE TROPHY CARS - Optimized for vehicles without catalytic converters to preserve vintage power.

Lucas Oil 10683 Hot Rod & Classic Car SAE 10W-40 Motor Oil is a vehicle-specific, medium-to-high viscosity motor oil designed for muscle, showroom, and classic cars without catalytic converters. It offers superior engine protection with rust and corrosion resistance, improves oil pressure in worn engines, and supports extended drain intervals for reduced maintenance. Packaged in a 5-quart bottle, it ensures cool, quiet operation and enhanced performance tailored for vintage vehicles.

Specifications

ASIN	B009M64CUM
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#49,239 in Automotive ( See Top 100 in Automotive ) #620 in Automotive Oils
Brand Name	Lucas Oil
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (865)
Global Trade Identification Number	00049807106836
Included Components	1x 5 Quart Bottle
Item Type Name	motor oil
Item Weight	4.35 Kilograms
Liquid Volume	5 Quarts
Manufacturer	LUCAS OIL
Manufacturer Part Number	10683
Model Number	LUC10683
Number of Packs	1
Part Interchange Info	10683
SAE J300 Viscosity Grade	10W-40
Size	Pack of 1
UPC	049807406837
Unit Count	160 Milliliters
Viscosity Level	Medium to High

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1026.58 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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