eBay is one of the largest and most competitive online marketplaces for all kinds of products. When it comes to those sold by the unit, weight, length, volume etc eBay's size can become a problem. With thousands of listings returned for many common products it is impossible to find the one that is the best value.
eBay features a cost per unit measure on some listings but we have found it to be wrong a lot. Many listings are what eBay calls 'mult variant', meaning that the single listing contains variations of the product and one of these is often the quantity being sold. Each variation of quantity will have a different cost per unit and there is no way to find out what that is on eBay unless you click on every listing and check every variation on offer. Sorting by price therefore doesn't work either as there are often variations for sample sizes which may be cheap but their cost per unit is very high.
After becoming frustrated with the problem of being unable to sort on price per unit in eBay we decided to build a solution. We check eBay regularly for a range of popular products and our unique software assesses each listing. We extract the quantity on offer from all listings and their variations, calculate the cost per unit and display the listings on our site sorted by cost per unit.
Because of the errors some sellers make when listing their products for sale we can't interpret everything correctly but we make it much easier to find the best bargains on eBay at any given time. We are adding new products all the time and we earn a small commission for our effort should you go on to make a purchase.
If there's a product you'd like to see on our site please contact us on our Instagram account and we will look into it.
Engine oil, a critical component in ensuring the smooth operation of your vehicle's engine, comes in various viscosities. The numeric part of the oil's designation, such as "5W-40," represents its viscosity, or thickness. In this case, the "0" indicates the cold-temperature viscosity, while the "40" signifies the oil's viscosity at operating temperatures.
The "5W" in 5W-40 stands for "Winter," highlighting the oil's ability to flow smoothly in cold temperatures. This is crucial for proper lubrication during cold starts, reducing wear and tear on engine components. 5W-40 is particularly advantageous in climates where winters are harsh, ensuring your engine receives proper lubrication even in frigid conditions.
At operating temperatures, 5W-40 maintains a viscosity equivalent to that of a conventional SAE 40 oil. This balance is essential for providing sufficient lubrication to engine parts while ensuring fuel efficiency. The viscosity rating plays a vital role in protecting the engine under varying conditions, contributing to its overall performance and longevity.
One notable advantage of 5W-40 engine oil is its potential to enhance fuel efficiency. The lower viscosity reduces friction within the engine, leading to improved fuel economy. Additionally, using oils like 5W-40 that meet specific standards, such as API SN or ILSAC GF-5, ensures they contain additives promoting cleaner combustion, reducing emissions and environmental impact.
When selecting engine oil, it's crucial to consider the manufacturer's recommendations found in your vehicle's owner's manual. Opting for oils that meet or exceed these specifications ensures compatibility with your engine and its components. Reputable brands, such as Mobil 1, Pennzoil, and Castrol, are known for producing high-quality oils that meet industry standards.
Regular oil changes are paramount for maintaining engine health. Over time, engine oil degrades, losing its effectiveness in lubricating and cooling engine components. Following the manufacturer's recommended oil change intervals is key to preventing engine damage and maximizing performance.
While some car owners prefer the satisfaction of a DIY oil change, others opt for professional services. Both approaches have their merits, but regardless of the method, using high-quality 5W-40 oil and a compatible oil filter is essential. DIY enthusiasts should follow proper disposal practices for used oil and filters.
In conclusion, understanding the nuances of 5W-40 engine oil empowers vehicle owners to make informed decisions for optimal engine performance. From its viscosity characteristics to its impact on fuel efficiency, choosing the right oil and adhering to regular maintenance practices are key steps in ensuring your engine runs smoothly for years to come.
