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: 15573954

Details

Brand
Lucas Oil
Liquid Volume
5 Quarts
Package Information
Bottle
SAE J300 Viscosity Grade
10W-40
Vehicle Service Type
Car

🔥High-temp stability

❄️Superior cold start flow

🛡️Zinc & molybdenum fortified

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Description

🛠️ Classic power meets modern protection—drive legendary, stay unstoppable!

ALL WEATHER WARRIOR - Exceptional cold temperature flow and heat resistance keep your engine running flawlessly year-round.
RUST CORROSION SHIELD - Unique additive package guards your engine’s internals, extending life and reducing maintenance.
FUEL OIL COMPATIBILITY - Works seamlessly with methanol, racing fuels, synthetic & non-synthetic oils—future-proof your ride.
ENGINE ARMOR FOR CLASSICS - Specially crafted for muscle & trophy cars without catalytic converters, preserving vintage power.
PEAK PERFORMANCE UNDER PRESSURE - Boosts oil pressure in worn engines for smooth, reliable rides every time.

Lucas Oil 10683 Hot Rod & Classic Car SAE 10W-40 Motor Oil is engineered for muscle, showroom, and trophy cars without catalytic converters. It features a premium paraffinic base fortified with zinc, molybdenum, and phosphorous for maximum engine protection, rust resistance, and enhanced oil pressure. Designed to perform in extreme temperatures and compatible with various fuels and oils, it extends oil life and reduces maintenance, making it the ultimate choice for classic car enthusiasts who demand reliability and performance.

Specifications

ASIN	B009M64CUM
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#1,416 in Automotive ( See Top 100 in Automotive ) #40 in Motor Oils
Brand Name	Lucas Oil
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (1,200)
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
Manufacturer Warranty Description	30 Days
Model Number	LUC10683
Part Interchange Info	10683
SAE J300 Viscosity Grade	10W-40
Size	Pack of 1
UPC	049807406837
Unit Count	160.0 Fluid Ounces
Viscosity Level	Medium to High

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163929CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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

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