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As far as oil, The primary benefit of synthetics, are resistance to oxidation, and higher TBN allows extended drains. The increased solvency of synthetics help keep your engine clean, and synthetics have much better performance in extreme hot or cold. Most synthetics have higher than normal levels of friction modifiers that promote fuel economy and HP. Mobil 1 is the only true major synthetic available over the counter. There are other true synthetics, such as royal purple, amsoil, redline, etc........but they are much harder to find. Advance auto has recently started stocking redline. Valvoline durablend, castrol syntec, pennzoil synthetic, etc, etc....are not true synthetics. You do not have to use a synthetic to acheive long engine life. As far as conventional Passenger car oils.........pennzoil, havoline and chevron are all top notch oils. Motorcraft (conoco) and castrol gtx usually perform well also. Heavy duty oils such as chevron delo 400 and mobil delvac 1300 are viable alternatives if the viscosity is suited to your climate.
Fram filters have subpar construction. They are the only filter manufacturer to use cardboard endcaps on the filter cartridge. The fram ADBV does not seem to work well (not a concern with SBC's), and the bypass valve is a subpar design (not a concern on sbc's). Pennzoil and quaker state filters are also made by fram. Wix is a quality filter manufacturer and produces the carquest premium, and napa gold filters. Champion is also a quality filter manufacturer, and they produce ac delco, stp, supertech, mobil 1, K&N, bosch, and some fleetguard filters. Purolator is good as well.
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