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Matt
Matt, Mechanical Engineer
Category: Car
Satisfied Customers: 20604
Experience:  BEng hons Mech engineering, in auto industry 22 years
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My husband has put nearly a litre of petrol in our vauxhall

Customer Question

My husband has put nearly a litre of petrol in our vauxhall insignia before he realised his mistake . He then filled it up with diesel as we are due to go on a journey tomorrow will the petrol hurt the car
with thanks
Submitted: 1 month ago.
Category: Car
Customer: replied 1 month ago.
Do you have an answer
Expert:  Matt replied 1 month ago.

Hello

OK with a modern diesel engine you can get away with about 15% petrol in diesel with no ill effects

as its a 70 litre tank then 1 litre is only 1.5% so you will absolutely fine

If you want to be absolutely sure then I'd say to add a bottle fuel treatment such as this

https://www.amazon.co.uk/Millers-Diesel-Injector-Cleaner-250ml/dp/B0168KHDW8/ref=sr_1_25?s=automotive&ie=UTF8&qid=1476213552&sr=1-25

that will add a does of lubricant into the fuel and help protect the pump seals against any damage from the petrol

Expert:  Matt replied 1 month ago.

Hi

do you still need help?

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