Synthetic Mobil 1 oil last in sealed container has a shelf life of five years.
Oil does not wear out it just gets dirty. Change it every 7,500 -10,000 miles if you use synthetic depending on how you drive.
form_title= Synthetic Oil form_header= Put synthetic oil in your car with help from the pros. When was the last time your oil was changed?*= _  Have you ever used synthetic oil before?*= () Yes () No What type of oil do your currently use?*= _ 
Use synthetic oil
You can mix part synthetic oil with full synthetic oil.
If you drive under normal conditions, I recommend changing conventional oil/filter every 5,000 miles. Blend every 6,500 miles. Full Synthetic every 8,000 miles.
Semi synthetic or synthetic blend is a combination of synthetic and conventional oil. Full synthetic oil is just that 100% synthetic oil.
Yes, that's really too long unless you're using a fully synthetic oil.
Oil that comes out of the ground is not synthetic but is called crude oil. Synthetic oil is man made with synthetic compounds. They are both oil.
Synthetic oil is synthetic oil.
Synthetic oil manufacturers.
Yes, Synthetic oil is synthetic oil no matter who makes it.
Yes, that is what a synthetic blend is that they sell.
I switched to full synthetic engine oil in 2001 and have no oil leaks on my 1995 Ford What makes you think you will have leaks? And if you think you will have leaks then why would you use synthetic? You will have no leaks that you would not have with conventional oil.
It is a combination of synthetic oil and conventional oil.
The Owner's Manual specifies 10W-30. I use Quaker State Full Synthetic but traditionally, one uses non-synthetic engine oil for a 4-cylinder engine. As long as you use 10W-30, you really can't go wrong. Try not to mix synthetic and non-synthetic oils. Check what was used in the last oil change and use as close to that as you can.
Synthetic oil is synthetic oil. Any major brand will be of high quality.
Synthetic oil is a chemically made substitute made from petroleum components as opposed to non synthetic which is made from crude oil.
It can be. The 5w20 is the weight of the oil which you can buy conventional or synthetic. If it is synthetic it will say so right on the container. If it does not say synthetic it is conventional oil.
You can use synthetic, synthetic blend, or conventional oil. It is your choice.
No, as long as it is the proper weight. In fact I highly recommend synthetic oil be used in any air cooled engine.
I will change my oil from conventional oil to synthetic oil on my next oil change.
No an oil filter just filters the oil no matter synthetic or not
Yes, semi synthetic is a blend of synthetic and conventional oil already.
synthetic oil , its the best for toyo cars since they last forever