Engine Oil

What engine oil should I use on my Esprit? This is one of the questions I get asked most frequently. Here's the official recommendations from Lotus:

 

4-cylinder Esprit
 Refill Capacity (including oil filter) 6.7 US qt (6.3 litre)
Difference from low & high dipstick marks 0.9 US qt (0.85 liter)
Product Viscosity Grade
Mobil 1 5W/50
Valvoline Racing Oil  20W/50
Agip F1 Super Motor Oil 15W/50
Castrol Formula RS 10W/60
Elf Competition 20W/50
Elf Competition 15W/50

Esprit V8
 Refill Capacity (including oil filter) 6.7 US qt (6.5 litre)
Difference from low & high dipstick marks 1.0 US qt (1.0 litre)
Product Viscosity Grade
Mobil 1 5W/50 or 5W/30
Agip F1 Super Motor Oil 15W/50
Castrol Formula RS 10W/60
Elf Competition 20W/50
Elf Competition 15W/50

You may have problems finding some of the brands or viscosities in your particular market. In the USA, many owners (myself included) choose to use Mobil 1 RS 15W/50.

 

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