Permatex 24105 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 10.6 oz. Cartridge

Customers find the RTV silicone gasket maker works well for various applications, including engine and transmission oil drain plugs, valve covers, and rear differential covers, with one customer noting it holds up for over 10 years without leaking. The product is easy to apply and use, and customers consider it good value for money, with one mentioning it's worth the price for ease of use. While some customers report the product holds up well, others mention issues with the plastic caps cracking.