About Us

Bar’s Leaks Australia LP & H.O Wiles Limited (est. 1908) manufacture and market some of the most trusted names in automotive chemicals. These include the Bar’s Leaks radiator products plus the market leading Bar’s Bugs windscreen washer additive range and, more recently, we have added Workshop Hero products to our range.

In addition to our retail products on offer we manufacture a wide range of custom home branded products specifically to order for a range of Automotive dealerships and wholesalers in the form of fuel additives, upper engine cleaners and general multipurpose cleaners. The Australian head office and manufacturing plant is located at Taren Point in Sydney’s southern suburbs. New Zealand’s head office and manufacturing plant is located in Penrose, Auckland.


We work closely with international partners and local specialists to develop some of the most trusted and leading cleaning products found in NZ and Australia.


Manufacturing has been the backbone of the both our Australian and NZ companies since the early 1900’s. We pride ourselves on producing products locally supporting local suppliers and industry.


Our products can be found in all leading automotive and mass merchants across Australia and New Zealand. Most retailers we have been trading with for over 40 years, providing great distribution and brand presence.

OEM Products

We work closely with leading automotive organisations at OE level, in formulating premium additives and cleaners to provide exclusivity and uniqueness for organisations.

View Products >

Get Started

Check Out Our Brands