added in small percentages

[Offroad]

Dear teachers,

Do these read well to you?

The high heating value of bio-oil from dry coconut fiber, 11.17 MJ/kg, is not high if compared to values found for diesel (43 MJ/kg), as a result, bio-oil can only be added to diesel [and] in small percentages.

Does the 'and' make any sense?

Very much appreciated.

Offroad

[Rover_KE]

No.