Yesterday I changed the oil in my 98 Volvo S70 2.4 liter - 68000 miles. I put in 10w-30 mobil clean 5000 and a mobil 1 oil filter. Once I started the car back up it was smoking profusely. There was no way for me to drive my car anywhere so I just left it to work on it today after work.

I had a friend of mine who knows a good bit about cars come by and said we would have to change the oil all over again and get a new oil plug and possibly spark plugs.

Do you think I need all of that and if so what do you recommend for oil, filter, plug and spark plugs?

I am not sure at all what to get plug or spark plug wise or even how much. If you could respond with what I should get and if that is what you think will be needed before 5 today SO helpful.

If this is something I can fix myself with the help of my friend or do you think I should take it to someone to have them do it.

Help please!

 

At the risk of sounding mean, I would say that if you can screw up an oil change you best leave any further tinkering to your local garage. How much oil did you put into the car and into what hole did you pour it? did you take the old oil out first?

 

How long did you have the car running? Did you touch the spark plugs at all while changing the oil or possibly spill the oil somewhere while pouring it in?

My car (non-Volvo) has a oil leak at the valve cover gasket. Because of this the hole where the spark plugs are gets filled with oil. If I pull the plugs out (or just the plug wires) I get a large amount of oil into the combustion chamber. After doing that, if I run the car for a minute or so, the oil burns off and the smoke dissipates. That was the last time I changed the plugs - next time I'm going to replace the gasket at the same time so that it won't happen again.

My point is, the only way I know that smoke can come out of your exhaust after changing the oil would be if you got oil in the combustion chamber. It should burn off pretty quickly with some potential damage to the plugs (although I have regular platinum plugs in mine and they've been working for a long time since my incident).

On another note, I'm not sure why you'd change the oil plug - did oil leak out when you started it?

 

Hi Egibson9,

Sorry about the problem.

First, I would like to know what colour the smoke was. Here's a colour chart:

BLUE: Engine oil is entering the combustion chamber and burning.
WHITE: Normal water vapour or coolant leaking into the combustion chamber (you should smell sweet coolant odor)
DARK GREY: Air/Fuel mixture being too rich, due to neglected tune-up or problem in the fuel/ignition control system.
OTHER: Poor quality fuel or improper additives in fuel or oil.

>I had a friend of mine who knows a good bit about cars come by and said we would have to
>change the oil all over again and get a new oil plug and possibly spark plugs.

Negative. Leave the oil, filter, drain plug and spark plugs (unless neglected). But check the oil level by pulling out the dipstick, wipe clean, re-insert it and pull it out again. If it is above "FULL" mark, some oil needs to be drained until it drops to the proper level.

Also, check to see if there are some spots that are leaking oil and dropping onto the exhaust lines. Make sure that the oil filter is not leaking at the base,as well asseams & gaskets on the engine. Ifthere is a leak from the drain plug, see if it's loose, then tighten it 1/16 of a turn at a time, until the leak stops, or you may need a new crush washer.

As to parts, always try to go with OEM (Original Equipment Manufacturer; the parts suppliers that supplied parts to Volvo factory). Here's an on-line vendor with good reputation:

http://www.fcpgroton.com/volvo.htm#c70


Also, this thread may be of some help in basic maintenance. This is specific to the 850, but since the S70 is similar to 850, you can use some of the info there. If you have any questions as to the thread, let me know.

https://volvoforums.com/m_48928/tm.htm


I hope this gives you some hints.


JPN

 

Nice informative post...