It doesnt require any work all you have to do is fill it up with regular gas.
As you failed to list which model 2000 BMW, I cannot provide an answer. BMW makes many vehicles including diesels. All I can tell you is to use exactly what the owner's manual states. if it states Premium, then use Premium. Using Regular can cause engine damage over time. If it says use Regular, then use Regular. The use of Premium is a waste of money and provides no benefit whatsoever. Of course it it is a Diesel, then use the correct Diesel.
The regular change of oil will not significantly show any change in fuel consumption, if considered over short period. The regular oil change will help in maintaining good engine health and power. It will also increase engine's life. In long term there will be saving in consumption of gas.
On a 1998 Lincoln Town Car : It depends on which engine you have : The 4.6 liter Single Over Head Cam V8 engine takes ( " regular " unleaded gasoline , 87 octane ) -------------------------------------------------------------------- If you have the 4.6 liter Dual Over Head Cam V8 engine ( some do ) it takes " premium " unleaded gasoline , 91 octane or higher ( there will be a " Premium Fuel Recommended " label behind your gas filler door
No, always use premium, even at an altitude like that It does not change it enough to make a sizable impact on the engine running. The cost of repairing the damaged engine will not be nearly enough to cover what you've saved by paying less for fuel.
My advice is to use exactly what the manufacture recommends on any older car. Using 87 octane in an engine that requires 91 octane will cause pre-detonation (pinging) and will eventually cause engine damage on older vehicles. On newer vehicles where the manufacture says, premium fuel recommended you can use 87 octane fuel. The fuel management system will adjust for the lower octane fuel. You will have a slight loss of power but no other problems. On vehicles were the manufacture say's premium fuel required you must use premium or you will damage the engine over time.
you should never mix regular oil with synthetic. it will harm your engine over time. i would go get everything flushed out then add either one or the other.
This all depends on the compression of your cars pistons, If you have anything over 10 and you opt. for regular Unleaded you might get pre-ignition in your cylinders which will cause a "PINGING" or "KNOCKING" sound usually high-end cars call for higher octane gas. So unless your car calls for premium fuel stick to regular and save a few bucks.
yes u can , but you will also need matching computer changed over
Use 5W20 any premium brand. I use Pennzoil and have for over 40 years with not internal engine problems. Just as important use a quality oil filter. I recommend Purolator or Wix filters. Change your oil every 5,000 miles.
I went to Lincoln Tech Auto school and the Professor in my Automatic Transmissions class told me the best thing to do, to clean out your engine is to put Automatic Transmission fluid in it and run it over the weekend and then change it out with regular motor oil.
With regular oil & filter changes at required intervals with proper quality engine oil and not lugging or over revving the engine.
Bad performance ,pinging ,engine detonation,over heating, just too name a few.