Havoline's conventional motor oil features Deposit Shield Technology ... Our link below takes you to the 5W-30 variant. From Pennzoil is its conventional motor oil that promises to clean up ...

the only motor oil you have available is 5W-30, and you must drive it, it's better to add the 5W-30 than it is to drive your ...

These days, many automakers recommend that owners fill their cars' engines with synthetic oil instead of conventional oil.