![]() Plus, three (must change them at intervals) WIX oil filters (let's use a good one) at $5.29ea = $15.87 The only question left after that is does one consider it worthwhile to spend the money on their vehicle.ġ5w-50 M1 (extended life/15k mi) is $6.99/qt x 5 (a complete oil change)=$34.95 If synthetics can last longer, tolerate higher and lower temps, and have proven to provide more protection under such extremes then it should be evident which is better at lubricating. This new formula has been incorporated into Mobil 1 Tri-Synthetic™ motor oil, which was introduced in 1999."Įven though this subject has been discussed countless times, I had to stop and think about the obvious. ![]() Ultimately, Mobil developed an additional synthetic base fluid – an alkylated aromatic – that is especially effective in protecting engines against wear, sludge formation and piston deposits. The resulting synthetic fluid provides the optimum performance properties for engine lubricants. The PAOs are combined with an ester – a compound formed from the reaction of alcohol and certain acids. These carbon chains can remain liquid and slippery under the widest range of engine conditions possible. PAOs are made by chemically knitting molecules of ethylene into carbon chains of uniform length and shape. The result was the development of Mobil 1, a fully synthetic motor oil created, initially, from two synthetic base fluids – polyalphaolefins (PAO) and esters combined with a unique additive package. This search led to the development of synthetic base fluids free from the waxes and contaminants that cause conventional lubricants to solidify in extreme cold. More than 30 years ago Mobil began looking for lubricants that would flow easily at extremely low temperatures. While petroleum refining is an advanced science, small amounts of contaminants, such as sulfur, wax and asphaltic material cannot be completely removed from petroleum, and may end up in motor oil base stocks. Very short chains and ring compounds of carbon are volatile and can be refined to produce gasoline and other solvents. Thick tangled masses of carbon chains become asphaltic materials used in roofing tar and road work. These become the basis for lubricating oils and fuels. In an oil refinery, crude oil is separated into various stocks. Shorter chains produce fluid that flows more readily. Long chains of carbon atoms produce a thick viscous fluid that flows slowly. Crude oil is made up of a twisted and jumbled mass of carbon atoms that form chains and rings of different sizes and shapes. "Conventional oils come from crude oil that is pumped from the ground. If it ain't broke, don't fix it! The long and short of it is, just keep the oil clean, change it every 3k, and you can't go wrong. ![]() I use Valvoline 5W 30 in my 2.7L, and have since I've owned this truck (4 years - second owner). I personally keep a record of oil changes in my glovebox, and when I'm at 3k, it get changed without question or delay. A lot of people don't like having to change the oil every 3k, so they go with a higher mileage synthetic or dino, and wait to change it every 5k-10k. ![]() Also, due to the age of your runner, the seals may not be the best either, and the lighter synthetic oil may leak? This is on a case-by-case basis, and doesn't happen to everyone who may make the switch. My Taco has 131k! Anyway, the main purpose of synthetics is to remove and bind to any and all harmful deposits left behind by engine friction (basically, clean things up). I've preached on this subject for years! I'm going to guess that due to the year of your vehicle, you have 130k or higher miles. ![]()
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