Yes
Oil changes are always necessary. If you mean can you mix conventional oil and synthetic, the answer is yes you can.
If you have kept regular oil changes, no prep is required. Just go and put the synthetic oil in.
synthetic to conventional - ok conventional to synthetic - no
depends on the bike, on our wet sump, we use regular petroleum, on the dry clutch, can use fully synthetic, can feel power differently, but full synthetic makes the clutch slip on wet clutch bikes.
Yes, you can. It is even sold as a Synthetic Blend.
Depends upon how it is being used. For turbocharged auto engines, one should use Synthetic oil Regular grade oil can be used in all other applications. Oil analysis tells the true answer here. Given the same engine in good working order and doing an analysis of each the synthetic oil will have a much better analysis and show less deterioration than the equivalant petroleum based oil. Synthetic oil can be left in for longer change intervals than petroleum based oils because they handle high temps of todays engines far better. I agree with the above and would use nothing but full synthetic in a turbo charged engine. The turbo fan spins upwards of 20,000 RPM, gets extremely hot and will break down petroleum oil quick.
Synthetic is 100% synthetic. There are blends sold that are part synthetic & regular oil. Look for a quart that sates FULL or 100% Synthetic. If it says Synthetic Blend then it is not 100% Synthetic.Synthetic is 100% synthetic. There are blends sold that are part synthetic & regular oil. Look for a quart that sates FULL or 100% Synthetic. If it says Synthetic Blend then it is not 100% Synthetic.
its the same process as changing synthetic oil, except you use regular oil.
It might be... It's highly not recommended to mix regular and synthetic oils.
10w-30 either synthetic or regular Castrol for regular or Mobil 1 for synthetic
Products in this industry include calcined petroleum coke, regular petroleum coke, fireplace logs, fuel briquettes, or petroleum waxes, independently of petroleum refineries.
Synthetic oil or a blend of Synthetic and regular oil is much better for your vehicle than regular oil alone. Synthetic oil is MUCH more expenshive. If you change your regular oil every 3 months or 3,000 miles I will be fine.