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is the price of Schaeffers what ever market will bear? their site don't have a price list like amsoil does
Prices vary depending on market, but they are set by the home office. There's really only two different prices for it though, and the difference is very minimal. If you're interested in some pricing, PM me what you're after and I'll get some prices for you.
Well, I stuck with Rotella 15w-40 for this change. I had some on hand, and needed to get it changed asap. I took a sample to send off to Blackstone as well. I've yet to get an analysis. Hopefully it'll come back good. I plan on going with the 5w-40 next time though based on the feedback from you all. Are you guys getting the Rotella syn at Walmart? It's been a while since I bought, but I don't remember seeing anything but 15w-40 and SAE 30 dino. I'll check out Schaeffers too though. I'm with JT, I have no problem having a year's worth of product in the garage ready to use whenever I need it.
5W 40 is really the best year around, it has the same high temp viscosity as the 15W 40 with better cold weather viscosity properties because of the synthetic molecular stability.
That's my understanding too more or less. I have been told that 5W40 is really 5 viscosity oil (thinner) that holds its viscosity even at running temperature like the old single weight 40 oil (heavier) would. Is that true?
well hell this thread got me even more confused on what oils to use with 3 vehicles needing 3 different oils
I have been using amsoil but with no more miles than I'm driving it's no longer cost effective
with Schaeffers being a little cheaper per gallon than Rotella it would only cost a little more per year for my truck
the gas vehicles are going to get by with store brands like mobil or castrol
Guess I can do all that and still change oil in each once a year
That's my understanding too more or less. I have been told that 5W40 is really 5 viscosity oil (thinner) that holds its viscosity even at running temperature like the old single weight 40 oil (heavier) would. Is that true?
That's right. It's like cold 5W oil, but at operating temp, it's like a 40W. I really like how smooth my truck is on that stuff. It's still clacky when cold, but not nearly as bad as it is on Dino. Do this: If you're in a cold climate, put a cup of dino 15W-40 outside, and put a cup of syn 5W-40 next to it. You'll be convinced. If you live in a warm climate, put some in the freezer, but be prepared if your wife comes asking why you have two cups of motor oil in the freezer...
well hell this thread got me even more confused on what oils to use with 3 vehicles needing 3 different oils
I have been using amsoil but with no more miles than I'm driving it's no longer cost effective
with Schaeffers being a little cheaper per gallon than Rotella it would only cost a little more per year for my truck
the gas vehicles are going to get by with store brands like mobil or castrol
Guess I can do all that and still change oil in each once a year
That's what I do, Ray. My wife put 5k on her truck in 2 years. LOL... I just put 5W30 syn Valvoline in hers. It was like $18 for a 5 quart jug from WM.
That's my understanding too more or less. I have been told that 5W40 is really 5 viscosity oil (thinner) that holds its viscosity even at running temperature like the old single weight 40 oil (heavier) would. Is that true?
That is correct. A 5W-40 begins life as a 5W base stock, with polymers and viscosity improvers that when at temp, makes it behave the same as a 40 wt oil. That does not mean it will become thicker with temperature...they still get thinner, but it means that at operating temp the oil is the same viscosity and offers the same protection as what a straight 40 wt oil would also be at that operating temp, whereas a straight 5 wt oil would become excessively thin. However at colder temperatures, and when you first start the truck, you get the benefits of a thinner oil compared to a straight 40 wt, being quicker pumping, easier flowing, and less time to achieve full lube.
All multi-viscosity oils are formed the same basic way. They all start life as a base oil of the lower/fist stated viscosity, with additives that let them provide the protection of a the thicker/second stated viscosity.
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