🚗 Keep Your Engine Roaring with Confidence!
Castrol GTX Classic 20W-50 Conventional Motor Oil is engineered for push-rod and flat tappet engines, providing exceptional wear protection and thermal stability. This 5-quart powerhouse is designed to maintain a thick oil film under extreme conditions, ensuring your engine runs smoothly and efficiently.
| 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 |
| 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 |
L**S
Best oil for old hot rods for the $$. Real good if you can buy the 2 jug case.
This oil is very good for older flat tappet cam shaft engines. Try to buy the 2 jug case to get the best price per quart. This oil has a better daily driver detergent package than the Valvoline VR1 oil which is a racing oil. If you have a older car with a flat tappet cam and you want to run a conventional oil this is the one to get. I have a 1970 Corvette with a factory solid lifter cam and this oil is what I use.
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.
M**S
Great but pricey
Great oil but the price jumps up at least $5 every time I purchase another one!!But well worth the money
A**G
Good product for older car engines
Item as discribed
M**T
Good product
Great price
W**
Price to high
Price was to high because of the shipping cost
R**N
Helps keep our older cars running with bad new gasoline
This oil contains higher levels of zinc (ZDDP) which is needed in classic cars that use flat tappet (lifter) camshafts (hydraulic or mechanical). Newer oils had ZDDP greatly reduced, and their use could and did cause increased wear on the lifters and cam lobes, often leading to engine failure.The reduction in ZDDP was mandated by the government because of its effect on emission control devices; the impact on older cars was not a consideration. Until recently you would need to buy expensive racing oil or break in specific oil to protect your classic car's engine, so its nice to have this more standard oil available again!
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1 day ago
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