🛢️ Classic protection, modern muscle – keep your engine legendary!
Castrol GTX Classic 20W-50 Conventional Motor Oil is a premium 5-quart motor oil engineered with high zinc and phosphorus additives to provide extreme wear protection. It maintains a thick, durable oil film even under severe conditions, resists thermal degradation and foaming, and is compatible with gasoline and alcohol-based fuels. Ideal for push-rod, flat tappet, and performance cam engines, this SAE 20W-50 oil meets or exceeds API SJ standards and is proudly made in the USA.
| Viscosity | 20W-50 sae_grade |
| Brand | Castrol |
| Vehicle Service Type | push-rod, flat tappet engines and performance cam applications |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00079191220085 |
| Manufacturer | Castrol |
| Size | 5 Quarts |
| Model | GTX Classic 20W-50 Conventional |
| Item Weight | 9.63 pounds |
| Product Dimensions | 8.31 x 4.56 x 12.75 inches |
| Country of Origin | USA |
| Item model number | 15E809 |
| Manufacturer Part Number | 15E809 |
F**K
Great oil but over-priced.
I prefer to use Castrol Classic in my 1962 MGA. The formulation is beneficial to older flat tappet engines. However, Castrol price increases place the Classic 20W50 $16 higher than the 5-quart Valvoline VR-1. Shifting to Valvoline next oil change.
J**Y
My old mail Jeep likes this oil
My old mail Jeep likes it
B**L
Good oil
High zinc for old cars
M**E
Awesome classic car motor oil
Great price on classic car oil. It has the ZDDP in with the API classification of SG.
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**R
It's got the zinc Scotty!
This high zinc oil should do well in the older ford hot rod. It poured nice and sweet! It is high zinc for break in and such.
W**
Price to high
Price was to high because of the shipping cost
S**O
Hot rod lubrication!
Perfect for vintage high performance engines. Nothing but the best for my Dart GTS
Trustpilot
1 day ago
1 month ago
