Oil change interval
 

I put 4,000 miles a year on my 97 SL500. How should i change oil- at mileage or time.

3000 miles is the "standard" for a lot of car people. 4000 is also OK. Go by mileage, but change every 12-18 months if low mileage below interval. On all of my cars with Dino oil I change it with filter whenever the mileage (in thousands) is divisable by 3.

I do mine every April and October
 

On my cars that don't get driven too much I change the oil and filter every six months. I also use Mobil 1. Even at 30~40 bucks for oil and filter it is still cheap.

For that low a milage rate I would recomend 1 a year with Mobil 1. Or 2 times a year with Dino.

I generally change my own oil 2 times a year with Mobil 1. These days I'm running my 560SL 13,000 miles per year. I owned my 1993 Ford Taurus since new. It went to 220,000 miles with no precivable engine wear and I was running that one about 16,000 miles a year with changes 2 times per year using Mobil 1.

My F150 truck now has 170,000 miles I use Mobil 1 and change once a year since I'm down to only 7000 miles a year on it.

John Roncallo

my way!
 

I know everyone seems to have their own take as to what the proper interval is. I use 2500 as it's easy to remember odometerwise. Although I may be lucky, as this approach has yielded 431,000 on my 300DT(daily driver), I use this for all vehicles that I own including my 300SL (2500 mi annually). Surely, this simple DIY becomes extremely economical when looking for maximum protection. For low annual mileage one year seems about right. Ron

I'm with John. Once a year with Mobil 1 is plenty at that mileage rate.