Superior quality lubricants improve fuel economy and help the environment!   Have you tried the APRIL LUBE APP yet?   It matches over 200,000 vehicles with APRIL products!   Simply select the YEAR, MAKE and MODEL...and voilà!   You'll be amazed!  

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Available in
10W, SAE 30, SAE 50


Transmission fluid

APRIL TO-4 is a premium quality transmission and hydraulic fluid made from pure virgin base oil and APRIL NANO 1™ lubricant technology for unsurpassed protection and performance. While all three SAE viscosity grades are recommended for transmissions and final drives requiring a Caterpillar TO-4 lubricant, the 10W grade is additionally recommended for use in hydraulic systems requiring a Caterpillar TO-2 lubricant.