To know the benefits of high mileage synthetic oil, you first have to understand how it differs from traditional oil.Conventional lubricants are sourced from crude oil.Once extracted from the ground, it is thoroughly refined to eradicate impurities.Then it is combined with other chemicals before finding its way to your local auto-parts store.However, whatever the process used, conventional oils always retain have a particular level of insolubles, like silicon, paraffin, and other natural contaminants, which can form deposits inside an engine under certain conditions.
On the other hand, high mileage synthetic oils are typically manmade, albeit not necessarily.They are often derived from natural gas or alcohol, which means they’re pure from the get-go, having no undesirable elements.As well, they’re also more stable at varying temperatures.They don’t condense as much in cold temperatures nor dilute excessively in warmer weather.The higher the VI (viscosity index), the better the oil, meaning viscosity is more stable in varying temperatures, which is a good trait.
Also, it’s worth taking note that many refiners produce synthetic blends that are cheaper but weaker in terms of the protection it provides.
Benefits of High Mileage Synthetic Oil
Another key benefit of high mileage synthetic oil is molecular constancy.Because they are impure substances, conventional lubricants composed up of varying length molecules.Hydrocarbon can come in small, medium or long chains.Synthetic oil only has medium-length molecules.
The problem with conventional oil’s short, lightweight hydrocarbons is that they make it burn in high temperatures.The oil thickens the longer it stays in the engine.Aside from that, synthetic oils can also take high temperatures much better compared to conventional lubricants.And they’re a lot better at transferring heat, so synthetic oils can actually even help a vehicle’s engine run cool.
Because they are more resistant to “shearing” or breakdown, synthetics are just richer than conventional lubricants, which can pay off big time.The drain interval can stretched safely from 10,000 to 12,000 miles, which is three to four times normal oil, while the extra cost of synthetic is far from that.
Some niche oil companies push for even longer drain intervals – maximum of 25,000 miles, but this is quite extreme and hardly something experts will take a chance with.
More Fuel Economy
Better fuel economy makes another way drivers can save cash with synthetic oil.Don’t expect a big increase if you make the switch, but be ready to see an efficiency boost of 2% to 3%.
Of course, synthetic oil benefits don’t come free.They’re usually many times pricier when compared to conventional lubricants.However, the expense is well-justified.Then again, synthetic oils are not all the same, so you have to pick the right product.