Deal DetailsLast Edited by widgit October 21, 2012 at 07:21 PM
$35 Off Royal Purple Do-It-Yourself Oil Change 5-Qts. With Royal Purple Oil Filter
At my pep-boys it $9.99 per quart and $15.99 oil filter
$9.99x5 = $49.95 + $15.99(oil filter) = $65.94 - $35 coupon = $30.94
Reality: Synthetic motor oils use crude oils extracted from the earth which go through a synthesis process and use man-made additives in the creation of a final product.
Myth: Synthetic oils are too thin, creating blow-by and oil burn-off in older cars.
Reality: Just like conventional motor oil, synthetic oils have a specific viscosity grade. However, synthetic motor oil contains extra lubrication additives to make the oil stronger and provide higher heat dissipation. Synthetic oils do not affect seals and will not be the cause of blow-by or oil burn off in an older engine.
Myth: Once your engine gets a taste of synthetic motor oil, there's no going back to conventional oil.
Reality: Synthetic and conventional oils are compatible - It is not harmful if you decide to switch.
Myth: There is not any real difference between conventional and synthetic motor oil.
Reality: There are not any real differences in the basestocks used to make synthetic and conventional oils, but there are differences in the additives and process used to make the final products.
Myth: Synthetic motor oil will ruin the seals in older vehicles and cause leaks.
Reality: Synthetic motor oil does not cause leaks. It is 100% compatible with all automotive seal and gasket materials.