| MGB Engine Oil Chart | |||||||
| RB Part Number | |||||||
| Model | Year | Brand | 1 Litre | 4.5 or 5 Litre | Description | Capacity Litres (drain & refil) | |
| MGB | 1962-80 | 1.8 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 4.30 |
| MGB | 1962-80 | 1.8 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 4.30 |
| MGB | 1962-80 | 1.8 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 4.30 |
| MGB | 1962-80 | 1.8 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |
| MGC | 1967-69 | 3.0 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 7.50 |
| MGC | 1967-69 | 3.0 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 7.50 |
| MGC | 1967-69 | 3.0 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 7.50 |
| MGC | 1967-69 | 3.0 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |
| MGB GT V8 | 1972-76 | 3.5 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |
| MGB Engine Oil Chart | |||||||
| RB Part Number | |||||||
| Model | Year | Brand | 1 Litre | 4.5 or 5 Litre | Description | Capacity Litres (drain & refil) | |
| MGB | 1962-80 | 1.8 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 4.30 |
| MGB | 1962-80 | 1.8 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 4.30 |
| MGB | 1962-80 | 1.8 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 4.30 |
| MGB | 1962-80 | 1.8 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |
| MGC | 1967-69 | 3.0 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 7.50 |
| MGC | 1967-69 | 3.0 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 7.50 |
| MGC | 1967-69 | 3.0 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 7.50 |
| MGC | 1967-69 | 3.0 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |
| MGB GT V8 | 1972-76 | 3.5 carb | Carlube Classic | - | RX1363CL | 20w/50 mineral | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Castrol Classic | RX13631L | RX1363 | 20w/50 mineral | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Carlube Triple R | RX1896 | RX1897 | 10w/40 semi synthetic | 5.10 |
| MGB GT V8 | 1972-76 | 3.5 carb | Castrol Classic | RX15701L | RX1570 | XL30 mongrade | |