My mercedes says its 8000 miles over due for an oil change. How many more miles can I go with out problems?

Also, I use regular gas instead of premium, I cant notice anything wrong and Ive been doin it for years can I go on using regular gas?My mercedes says its 8000 miles over due for an oil change. How many more miles can I go with out problems?
0!!!! Your Mercedes should be changed every 3000 miles using conventional oil. If you have synthetic, you can sometimes get away with around 5000 miles. As far as damage goes... just get your oil changed as soon as possible because your oil is burnt out, and will literally come out of your exhaust. Used motor oil is like liquid sandpaper to your engine.My mercedes says its 8000 miles over due for an oil change. How many more miles can I go with out problems?
8000 miles overdue is being a bit on the harsher side for your engine. Being a Mercedes, she can take it. I would suggest the following steps, if, for whatever reason you do not wish to change the oil:-


1) Check oil level, if low, top up immediately.


2) Check dipstick for colour/texture of oil. If overly black and traces of sludge are present, change oil and filter.


3) If the car is not overheating nor is the engine knocking, the oil can be changed after a few more miles.





Remember, oil removes sludge, water content, acids and other corrosive matter from the engine. Timely oil and filter changes keep the engine in prime condition and extends its useful life.





Most models of Mercedes run on regular gas and this should not be a cause for any great concern. The premium fuels give a cleaner burn (if these are recommended).
A lot of people change oil at 3000 miles, I have always change at 5000 miles, and have very good luck with my engines. You need to change the oil, now, it will help the engine to change the oil. also the oil filter. On the gas you use in you car, if it run good with regular, then use regular, If it ping when speeding up or on a hill, go up a grade, it may also be time for a tune up. Change the air filter too. and do the gas filter as soon as you can,
Go to the Blackstone Laboratories website and order their kit and send them a sample of your oil. Let them analyze it so they can tell you exactly how cruddy it is. There is never a good reason to abuse your vehicle like this. I recommend that you put a quality synthetic oil in and a quality filter as soon as possible. I disagree with the Valvoline Tech also. My 07 Ford Fusion has a 5k mile change interval recommended by the manufacturer using semi-synthetic which is what the dealer uses and is OEM recommended. I use full synthetic and change it every 7k and my oil is fine (I have had it analyzed by the lab so I know for sure). Also if your vehicle is recommending premium it probably has a higher compression ratio. If you hear any knocking or pinging you need to use a higher octane fuel. Most German cars recommend 91 octane if they are recommending premium use try using half a tank of 93 and half of 87 with a quality gas (Shell, Mobil, BP) or using 89 octane. You may get a small bump up in your fuel economy to justify your increase in cost for buying midgrade.
Oil change is life for your engine. (Please ask your dealer for the price of a new engine)





If you want to use 16.000 miles (or more) oil change intervals, use AMSOIL.





If your engine runs on regular, use it. ';Premium'; is for people who wants to waste money, or for damaged cars. You can go to the owner manual and search for the gas the manufacturer recommends.
Seems like you don't really give a crap about your car so why not keep driving it to find out how much longer it will run. I you don't have $30 for an oil change and $4 a tank for the correct gas, maybe you should be looking for a cheaper car. It won't be long toll you will owe money on a huge lawn ornament.
How many miles.... NONE. Buck up and go have it changed ASAP. Grow up or you wont have it long and it will be a junk heep in the drive way. You have what others would kill for --be responsible and take care of it!!
Not vary many if you want to get the most out of your car and the same goes for using regular gas.
do your self a huge favor and get an oil and filter change every 3000miles and if ur car runs ok on reg then it will continue to run good on it