CastrolGTX Classic 20W-50 Conventional Motor Oil, 1 Quart, Pack of 6
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CastrolGTX Classic 20W-50 Conventional Motor Oil, 1 Quart, Pack of 6

4.9/5
Product ID: 317127891
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Details

  • Viscosity
    20W-50
  • Brand
    Castrol
  • Vehicle Service Type
    push-rod flat
  • UPC
    079191218914
  • Automotive Fit Type
    Universal Fit
Compatible with gasoline & alcohol fuels
🔥High Zinc & Phosphorus for extreme wear defense
🛢️20W-50 Viscosity for robust engine protection

Description

🛠️ Keep your classic engine roaring with Castrol GTX Classic – the ultimate vintage power boost!

  • FUEL FLEXIBILITY - Works seamlessly with both gasoline and alcohol-based fuels, giving you versatile performance wherever you drive.
  • FOAM FREE PERFORMANCE - Minimal foaming ensures consistent lubrication and prevents engine damage during intense rides.
  • PROVEN API SJ STANDARD - Meets or exceeds API SJ specifications, guaranteeing trusted quality and reliability for classic and performance engines.
  • ENGINE ARMOR IN A QUART - High zinc and phosphorus formula shields your engine from premature wear and metal fatigue, perfect for muscle and collector cars.
  • THICK OIL FILM EVEN UNDER PRESSURE - Maintains a tough, thick oil film that stands strong in severe driving conditions and high temperatures.

Castrol GTX Classic 20W-50 is a premium conventional motor oil designed for collector, muscle, and race cars. Its high zinc and phosphorus content provides superior wear protection for engines with high tension valve springs and performance modifications. This oil maintains a thick protective film under extreme conditions, resists foaming and thermal breakdown, and is compatible with gasoline and alcohol fuels. Packaged in a convenient 6-quart set, it meets API SJ standards to ensure reliable engine care for vintage and performance vehicles.

Specifications

Viscosity20W-50 sae_grade
BrandCastrol
Vehicle Service Typepush-rod, flat tappet engines and performance cam applications
UPC079191218914
Automotive Fit TypeUniversal Fit
Global Trade Identification Number00079191218914
ManufacturerCastrol
Size1 Quart, Pack of 6
ModelGTX Classic 20W-50 Conventional
Item Weight12.38 pounds
Package Dimensions9.5 x 9 x 8 inches
Country of OriginUSA
Item model number15E809
Manufacturer Part Number15E809

Have a Question? See What Others Asked

How much zinc ppm?
Is this good with a turbo car, Will this oil work well with a 86 Buick turbo car with no catalytic converter
Can this be used for a air cooled 1970 vw beetle?
What are your thoughts on using this in mowers, generators and pressure washers where a 20W-50 is acceptable?

Reviews

4.9

All from verified purchases

P**N

Great old formula oil.

Thank goodness it has zinc. Superior lubrication on vintage motors. Especially motors with solid lifter cams.

L**E

Awesome Performance – Perfect for Lawn Equipment

I’ve been using Castrol GTX Classic 20W-50 in my lawn equipment, and it’s been absolutely great. It provides solid protection, smooth operation, and helps extend the life of my mower and trimmer. This oil is especially good for older engines or small engines that run hot and need a thicker oil.The only downside is that it’s hard to find in stores, so I usually have to order it online. But when I can get it, it’s worth every penny.If you're maintaining older engines or heavy-duty lawn tools, this oil is a reliable choice. Highly recommended!

M**E

Awesome classic car motor oil

Great price on classic car oil. It has the ZDDP in with the API classification of SG.

J**.

best oil for Rolls Royce

this is the only oil I use for my 65 Rolls-Royce silver cloud three. I like the zinc content. The oil is perfect for my engine in this vehicle

W**Y

Premium quality classic engine oil.

Castrol quality with classic car type additives. This is all my restored British convertible gets. A proven lubricant.

C**N

Easy to find classic car formula for great price

Great alternative to zinc additives or running a standard oil in older flat tappet cars. I have used this and Lucas classic car formula. It feels like Lucas does a better job with cleaning and cooling, but this seems to work well too. This is cheaper usually so well worth it. Put it this way, if I can get Lucas on sale where its within a few bucks of Castrol, I'll buy Lucas. If Lucas is too expensive or too hard to get, I'll happily use the Castrol.

W**

Price to high

Price was to high because of the shipping cost

B**L

Good oil

High zinc for old cars

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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1999 Kč

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Czech Republicstore
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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

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

2 weeks ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Castrolgtx Classic 20w 50 Conventional Motor Oil 1 Quart Pack | Desertcart Czech Republic