According to the latest survey of fuel prices from the AA, Ireland has seen a significant decrease in the cost of both petrol and diesel in July when compared to June.
Petrol now costs an average of 154.5 cent per litre, down 2.9 cent since June.
The fall in price for diesel was even greater: it now costs on average 144.4 cent per litre, a drop of 3.6 cent.
Fuel prices have continued to fall since March of this year; in the last four months petrol has fallen by 7.6 cent per litre and diesel by 10.7 cent.
"While a drop in fuel prices is always welcome, filling up in Ireland is still extremely expensive," said Conor Faughnan, Director of Policy at the AA.
"Tax plays a huge part in the cost of fuel in Ireland; the service station owners don't reap much of the rewards for increased prices - most of what you're paying is in tax."
Irish drivers pay out significantly through a combination of excise duties, including carbon tax and VAT, as over 57% of the price of both diesel and petrol is tax.
A typical Irish car doing typical Irish mileage will use 1,800 litres of fuel annually or 150 litres per month. At current prices, that means drivers will pay €231.75 this month for petrol, of which €132.10 is tax.