Will Valvorite 50 damage engine?

Mobil1 5w20

Application:
Use in temperatures above 23 degrees

Note :
Valvoline SynPower Full Synthetic
20W-50 Motor Oil

System holds about 8 1/2 quarts
Once you are using a synthetic oil, that is the only oil you may use from know. Anything else WILL do damage to the seals in the engine. This engine also comes from the factory with synthetic oil. Use a Mercedes oil filter. Believe me please, there is a difference in how oil filters are made and an inferior oil or filter can cause major engine damage!

1996 Mercedes Benz C Class
Engine Oil Type/Weight/Capacity

Application:
Oil for use in temperatures above 23 degrees

Note :
5 4/5 Quarts with filter change

945
Application:
Oil for use in temperatures above 23 degrees

Note :
Valvoline SynPower Full Synthetic
20W-50 Motor Oil

Hope helps (remember comment and rated this).

1986 CHRYSLER FIFTH AVENUE 5.2L 8-cyl Engine Code [P]

LUBRICANTS & FLUIDS:
Engine Oil Grade 1....SAE ..API*
Above -18C......10W-30, 10W-40, 10W-50
Above -7C......20W-40, 20W-50

CAPACITIES:
Engine, without filter..........3.8 liters Add extra oil when replacing filter. After refill check oil level.

Use Lucas oil treatment and use the 10W-40, if your going to use the 20W-50. Use no oil treatment, the 20W-50 is thick enough. 15W-40 is what's used on the Diesel engines use on the 18 wheel trucks.

Thank you for using fixya.

sounds like timeing is out or you need higher octane gas

deisels have high compression so I never put synthetic oils in them because they are very thin. I use a thick regular oil. It would depend on the weather where you live. I live in california and use valvoline 20 50. On an earlier vehicle the oils where not as complicated so just use a good regular non syn. oil and it will be fine with the seals, gaskets and bearings in your engine

Castrol Tection or their new Elixion is the oil I recommend for diesel. With the regard to the oil leak, I am a tech and don't recommend putting any magic additive quick fixes in engines. If something can block an oil leak it could block a very important oil lubrication chanel in you engine and cause something to seize.
I hope this helps.
Sam

although mercedes recomend using synthetic motor oil im 90% sure that your mechanics mistake (putting to much oil in it) ruined your piston rings thats what the white smoke is all about!! oil is getting into the cylinders!! make him replace them for free since he caused that prblem im sure he has insurance!!

we use Fram oil filters and Valvoline oil 5-20 in our two taurus and 50/50 mix Prestone antifreeze and the brakes we get from NAPA and the NAPA oil is the same as valvoline and cheaper