I am trying to find a independant review of synthetic oil. No Amsoil commercials please!!! I want to switch my Scion XB over to a Full synthetic.

I want to extend my oil change intervals What year is your Scion XB, and is it still under warranty? If so, ask the dealer if they will still honor the warranty if you go beyond the oil change schedule documented in your owner’s manual.

I want to extend my oil change intervals I feel it’s OK to extend oil change intervals using synthetic oils. There’s really no reason to use them unless you can. Regular oils are good and cheap enough for normal change intervals. But, if you use a car in high mileage situation, where combustion by …

My own perspective on using synthetic to extend oil change intervals is that doing so is not a good idea. While I respect that synthetics survive extreme heat better, such as that caused by turbochargers, synthetics are just as susceptable to particulate contamination and to dilution and contaminati…

The math is really against you. Synthetics cost 3-4 times the price of normal dino oil and the most you would be able to safely extend the drain interval is 25-50%!!! If your car is under warranty, you cannot extend the interval at all without voiding it. This is the 21st or so post on that specifi…

THIS is where you go to obsess about Motor Oil… http://www.bobistheoilguy.com/forums/ubbthreads.php

Sorry, I don’t shop at Walmart and do most of my own oil changes. Even at Walmart, the economics still don’t make sense, since I don’t recommend extending the drain interval. One of our cars is used for short trip driving in severe weather, and I put Mobil 1 one in it in the winter, not to save mon…

And, lest we forget, for the average non involved consumer, regular oil change intervals, at least gets some one of some knowledge under the hood regularly, to check and top off other fluid levels, tire pressure etc if car is placed on a jack. With an extended oil change, which I believe in, someone…

Right; the contamination factor is the same, and the additive package is in there to counteract these contaminants. The main advantage of synthetics is then to be more resistant to COKING, THINNING OUT at very high temperatures, and FLOW BETTER at very low temperatures. Those qualities reduce the …

Excellent points. I check everything at least weekly, but many only pop the hood when they do the oil change. Some of them post wondering why their oil ran dry and their engine seized. I like EVs too. Especially the Teslas. Think how much development could have taken place on installation of charg…

Synthetic oil reviews

Maintenance/Repairs

nfs480 May 6, 2010, 10:09pm 11

If you shop at walmart they’ll cost you about 30-40% more, not 3-4 times as much. If it costs you that much you’re being ripped off. Walmart carries a lot of synthetics in 5 quarts jugs for a little over $20, their prices for the same size jugs of conventional are about $12-14

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