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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Lucas Oil LUC10683 10W-40 Petroleum Oil - 5 Quart Jug

Lucas Oil LUC10683 10W-40 Petroleum Oil - 5 Quart Jug

Product ID: 391419749

Details

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

🏁Compatible with methanol & racing fuels

🔥High thermal stability prevents overheating

⚙️10W-40 viscosity for versatile engine protection

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Description

⚡ Power your ride with the oil that champions trust!

RACE READY FORMULA - Works seamlessly with methanol and all racing fuels
TRUSTED BY CLASSICS - Preferred choice for vintage muscle cars and trucks
ULTIMATE ENGINE SHIELD - High zinc content guards flat tappet cams & lifters
LONG LASTING LUBRICATION - True high-performance oil that extends engine life
HEAT RESISTANT PERFORMANCE - Maintains film strength even under extreme temperatures

Lucas Oil LUC10683 10W-40 Petroleum Oil is a premium 5-quart jug of high-performance lubricant designed to protect older engines with superior zinc additives, exceptional thermal stability, and compatibility with racing fuels, making it the go-to choice for enthusiasts seeking ultimate wear protection and longevity.

Specifications

ASIN	B009M64CUM
Brand Name	Lucas Oil
Compatible with Vehicle Type	Truck
Container Type	Jug
Customer Reviews	4.8 4.8 out of 5 stars (867)
Global Trade Identification Number	00049807106836
Item Weight	4.35 Kilograms
Liquid Volume	5 Quarts
Manufacturer	jug
Manufacturer Part Number	10683
Model	LUC10683
SAE J300 Viscosity Grade	10W-40
Size	5 Quart
UPC	049807406837
Viscosity Level	Medium

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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.

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1504.78 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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Received my product in pristine condition. Great service overall.

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