Do you favour Flushing oil or additives when doing an oil change?

I've used a flush a few times on old cars I had bought and every time it caused the seals to leak. I quit using it because the cure was worse than the disease.

If the oil is changed on schedule there is nothing to flush out. If it is not changed on schedule the flush can break chunks of sludge loose and block oil passages. Just changing the oil is safer.

I would, and have, done a 'flush' on older cars, which haven't been well-maintained. If you car has, then it's really not needed - there is nothing which needs 'flushing'.

If it's really needed - I once bought an old tramper for my work commute, which had solidified lumps of what looked like lard(!) inside the rocker-box - just buy your good oil, the one you will be using for 6 months or a year, and a can of cheap supermarket 20W/50, and TWO oil filters.

Change your oil, draining out the old dirty oil, and change the filter for a new one. Add the 20/50 and drive the car around for an hour or so, getting it up to temperature. THEN drain out that oil, change the filter, and re-fill with the good stuff. Just keep changing the oil and filter every 6 to 9,000 miles, and you will never have a problem.

No, additives can damage the rubber seals on your engine, and your engine may also start burning oil. If it's a routine oil change, just drain the oil while engine is hot, and change the filter and make sure you buy a "Fully Synthetic" oil.

If you have done more than 12k miles on your current oil, then may be your engine needs cleaning, but don't use additives even then. When I have a situation, where inside of the engine needs cleaning, I buy a 5 liter can of oil while my car's capacity is 3.5 liter. I drain the oil, remove oil filter, fit back the old filter and put 1.5 liters of oil in. Run the engine for 20 mins and drain again. Then I can change the oil normally. Sometimes when I have a car with larger capacity such as 4 liter or above. I buy a couple of extra quarts of cheap oil just to use for flushing.

Hope this helps.

There are 2 faculties of concept in this; #a million. an entire equipment flush purges the completed transmission of fluid consisting of the torque converter. Ocassionally junk comes loose and could hotel in the small orifices and oil galleries and does not get out of the transmission. #2. a sparkling show and filter out is merely that. The trans pan is dropped the oil drains out minus the oil in the torque converter. a sparkling filter out is going back in. Neither of those upkeep steps will suitable a slipping transmission. I''m fairly various the previous college. With older vehicles we modify the filter out and fluid without hectic junk. a extra cutting-edge motor vehicle 50,000 and decrease than a flush could shop smaller debris of junk out. it somewhat is fairly plenty your selection.

YES< a good but mild MOTOR FLUSHING removes unwanted deposits, sludge varnish and coke from your engine. Be WARE that on VW products, you MUST use only synthetic oil that meet the VW/AUdi specification numbers 502/505. This means SYNTHETIC OIL form pentosin, Mobil One, and a few otheres like TOTAL ENERGY> Look for the VW approval ratings on the LABEL before you change your oil. Other oils will RUIN your cam tining, crank breathing and other things like sensors over time. It is ALSO very importatn thatyou keep your eninge CLEAN especailly your THROTTLE BOYD that houses very expensive electronics inside. Improper oil will EAT up the electropnics over time from acidic oil vapors. Syntheic oil makes NO vapors that are harmful. GOOD LUCK!! I recommend AMSOIL CRANKCASE CLEANER! Amsoil also makes a KILLER oil for VW products. GOOD LUCK!!

drop the oil and the filter and if it's average mileage just replace the filter and add your oil. If it's hi mileage you might want to use a flushing oil to clean the crud out I only do this every 50 K miles.

Shouldn't need flushing if the service schedule has been kept to. No need for additives either as modern oils have everything you need in it.

No. Get the engine warm before draining. If unsure of the vehicle history just bring forward the next oil and filter change (the more unsure you are the sooner you do it).

Do not add any cleaning additives to the crankcase. If you notice sludge build up, shorten you OCI.

No, I wouldn't.