What happens after six months? Does the oil somehow deteriorate while sitting in the crankcase?

MB claims once a year on the new cars. My friend changed the oil on the S600 about a year ago. Since it doesn't get driven much they change it once a year. They used 0w-40, he says it still looks brand new.

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2016 Corvette Stingray 2LT
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Good question, maybe they just wanted to sell more oil. I guess it could be a concern of condensation in the crankcase.

i believe it is condensation.

i do that on my scout. it gets maybe 1 to 200 miles a year crawling around behind large piles of snow.

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Every time you start it, the condensation is boiled off. Must be some by-product.

You might get some water soluable impurities in the oil that are not oil soluable. That is the only thing I can think of. I bought two containers of Mobil 1 truck and suv at the new super wally in marietta, ga. I went to a couple of wal-marts and couldn't find any 5-30 for the lesabre. I was almost tempted to buy the wal-mart synthetic. Anyone know what class of synthetic the wally mart store brand is?

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My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory

That doesn't happen when you start it...it has to be run a full operating tempratures long enough to cook it off. And no......short trips are not enough to do it.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

i agree with the bonehead again!

tom w

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Lol life is safe as long as you don't talk politics. What is this like a family gathering? Family of diesel heads. I must have soot for brains.

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My Daily : 96 E-300 Diesel with 195,000 miles
Retired: 92 300D 2.5 T 345K miles and for sale
Retired: 95 E320 157K miles and currently parked with blown engine

Both retired cars are for sale as is my w124 shop inventory