Does viscosity depend on speed?

Does viscosity depend on speed?

Foams such as mixtures of liquids and gas and emulsions can exhibit higher apparent viscosity than either individual phase on its own. A change in viscosity based on the speed or force used, it may increase or decrease. Other than temperature, viscosity of the same fluid may vary with sheer stress and pressure..

What causes decrease in viscosity?

The increase in temperature causes the kinetic or thermal energy to increase and the molecules become more mobile. The attractive binding energy is reduced and therefore the viscosity is reduced.

What liquids have a low viscosity?

The viscosity of a liquid is a measure of its resistance to flow. Water, gasoline, and other liquids that flow freely have a low viscosity. Honey, syrup, motor oil, and other liquids that do not flow freely, like those shown in Figure 1, have higher viscosities.

What is the best oil for older engines?

Comparing the Best High Mileage Motor Oil

• Best High Mileage Motor Oil Overall. Pennzoil High Mileage Motor Oil.
• Best Value Oil. Mobil 1 High Mileage Motor Oil.
• Best Budget Motor Oil. Castrol GTX High Mileage Motor Oil.
• Best Premium Oil. Amsoil High Mileage Motor Oil.
• Also Consider. Valvoline MaxLife Higher Mileage Motor Oil.

Which oil is best for high mileage engines?

• #1 – Mobile 1 High Mileage Synthetic Oil.
• #2 – Royal Purple HMX Synthetic Oil.
• #3 – Mobile Super High Mileage Synthetic Oil.
• #4 – Castrol GTX High Mileage Synthetic Blend Oil.
• #5 – Pennzoil High Mileage Synthetic Blend Motor Oil.

What oil has the highest ZDDP?

Mobil 1

Will synthetic oil hurt older engines?

It protects better, performs better, and lasts longer, and it’s no longer made with a chemical compound that could hurt older vehicles.

What is the best synthetic oil for high mileage cars?

• Pennzoil Platinum High Mileage Full Synthetic Motor Oil.
• Castrol EDGE High Mileage Full Synthetic Motor Oil.
• Valvoline Full Synthetic High Mileage Motor Oil.
• Royal Purple HMX High Mileage Synthetic Motor Oil.
• Shell Rotella T6 Full Synthetic Diesel Engine Oil.
• Mag 1 Full Synthetic Motor Oil.

Does Rotella 15 40 have zinc in it?

Shell is marketing their new CJ-4/SM oil as “Triple Protection,” meaning it provides enhanced qualities for engine wear, soot control and engine cleanliness. (The 15W-40 Rotella T with Triple Protection oil has approximately 1200 ppm of zinc and 1100 ppm phosphorus at the time of manufacture.)

Does Royal Purple oil have zinc in it?

Yes. All Royal Purple® engine oils contain the zinc/phosphorus compound zinc dialkyl dithiophosphate (ZDDP), but the maximum amounts are restricted by the current API oil specifications. For stock, non-performance automotive street applications, API SN licensed oils are OK.

Does Marvel Mystery Oil have zinc in it?

High Zinc Levels Reduce Wear Using high quality lubricant base oil, advanced additive technology, and an understanding of the lubrication needs of classic cars, we have designed an engine oil just for them.

Does Marvel Mystery Oil remove sludge?

Remove Sludge & Grime At your next oil change, replace 20% of your engine oil (traditional or synthetic) with Marvel Mystery Oil. Repeat at every oil change to remove and help prevent sludge buildup in the oiling system.

Which is better Marvel Mystery Oil or seafoam?

So if your vehicle can be filled up with up to 15 gallons of fuel, you will have to put 6 ounces of Marvel Mystery oil at every fuel fill up. Between the two additive brands, Seafoam wins this round. It gives better results when it is added into the fresh fuel and can stabilize it for up to two years.

What happens when you put too much Marvel Mystery Oil in gas?

Re: Too much Marvel Mystery Oil in gas, what now The newer ones, ’10 and up, will die a quick, expensive death from gasoline in the tank.

Does Marvel Mystery Oil increase octane?

No, adding oil to the fuel will lower the octane rating.

Can you add Marvel Mystery oil to gas?

ADDED TO FUEL: At every fill-up add 4 ounces of Marvel Mystery Oil to every 10 gallons of gas or diesel. An average passenger car tank is 15 gallons, so you would add 6 ounces at every fill-up. At your next oil change, replace 20% of your engine oil (traditional or synthetic) with Marvel Mystery Oil.