Texaco Regal Oil

Texaco Regal Oils are mineral oil based general purpose circulating oils/turbine oils. The Texaco Regal Oil range was discontinued some years ago and replaced with modern equivalents from the Texaco Regal R&O Range. They did not contain any specialist EP additives that could harm yellow metal components so were suitable for use over a wide range of applications. Mobil DTE Named Series and Shell Morlina can be used as a suitable replacement when used as a circulating oil. The following tables suggest alternatives for both the old Texaco Regal range, and the newer Texaco Regal R&O Range.

Old Name Viscosity
(Saybolt Seconds 100°F)
Equivalent ISO Viscosity (cSt)
(Actual cSt)
Modern Day Equivalent
Texaco Regal Oil "AA"      
Texaco Regal Oil "A" 145-153 32 (31-32) Texaco Regal R&O 32
Texaco Regal Oil "B" 180-214 46 (38-46) Texaco Regal R&O 46
Texaco Regal Oil "C" or "PC" 300-314 68 (64-67) Texaco Regal R&O 68
Texaco Regal Oil "E" or "PE" 419-500 100 (90-107) Texaco Regal R&O 100
Texaco Regal Oil "F" 675 150 (145) Texaco Regal R&O 150
Texaco Regal Oil "G" 961 220 (207) Texaco Regal R&O 220
Texaco Regal Oil "H" 1249 (269)  
Texaco Regal Oil "J"      
Texaco Regal Oil "K"      
Texaco Regal Oil "L"      

 

Texaco Regal R&O ISO Viscosity (cSt) Recommended Equivalent
(When used as circulating oil)
Texaco Regal R&O 22 22 No Recommendation
Texaco Regal R&O 32 32 Mobil DTE Oil Light
Texaco Regal R&O 46 46 Mobil DTE Oil Medium
Texaco Regal R&O 68 68 Mobil DTE Oil Heavy/Medium
Texaco Regal R&O 100 100 Mobil DTE Oil Heavy
Texaco Regal R&O 150 150 Shell Morlina S1 B 220
Shell Morlina S2 B 150
Mobil DTE Extra Heavy
Texaco Regal R&O 220 220 Shell Morlina S1 B 220
Shell Morlina S2 B 220
Mobil DTE BB
Texaco Regal R&O 320 320 Shell Morlina S1 B 320
Mobil DTE AA
Texaco Regal R&O 460 460 Shell Morlina S1 B 460
Texaco Regal R&O 680 680 Shell Morlina S1 B 680

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