Markm10431

If I remember right you can't just do an oil change and go on your way.. and i didn't see anything in the tech tips.. any ideas?

OHSIXX

I am planning on making the switch in about 400 more miles when the engine has 5K on it.

I cannot think of anything else to do, but drain out the old stuff and pour in the new stuff. :confused:

Wrecked82

When I had my replacement motor put in my 82, I started with Mobil One right off - right out of the box, so to speak. Never had any problems - 120K miles later.

yellow 72

Remove plug from pan,
drain old oil,
replace plug in pan,
add new oil................. :yesnod: :cheers:

69driver

It's my understanding that once you start with natural oil, you want to stick with it unless you plan on replacing some seals. I'm new at working on motors so please correct if I'm way off.

pik

If you have had any major engine work completed, eg camshaft change etc.
you would want to break those pieces in with regular oil. Then switch to synthetic.

zwede

That was true with the first synthetics many decades ago. Nowadays synth has seal conditioners. Still, a seal that was close to failing can be pushed over the edge with synth, but chances are it would have started leaking soon anyway.

GDaina

you forgot....
remove oil filter
pour oil into new oil filter
spin on oil filter and hand tight.... :thumbs:

That's it...nothing to it.

PRNDL

Just like any oil change you want to warm the engine up first. Then you just change oil and filter as normal, using the synthetic oil. I would certainly keep an eye out for drips/leaks afterwards.... just in case. MJ

74droptop

Why warm up engine first never understood that? Why not drain it when cold that way you get all of the oil out nothing in the top of the motor.Be sure when replacing filter to fill it with oil so pressure is there right away. Been doing oil changes this way for many years haven't had any problems.

joeveto

I change my oil cold, while it's all still in the pan. Another benefit is dealing with a cold engine and cold oil, rather than being scalded by hot oil, hot headers, hot cats, etc.

Also, I recently switched to synthetic after running with organic. Knock on wood, I've had no issues. So far.


[Modified by joeveto, 7:26 PM 4/10/2004]

isosceles

Last oil change, I switched our other car to synthetic, a 97 Prizm. Everything seems fine, no leaks or comsumption. :thumbs:

The Vette has too many oil seaps. I'm afraid to try it.


[Modified by isosceles, 12:23 PM 4/11/2004]

427V8

1. warm oil flows better.
2. Warm oil contains more contaminants, clod oil leaves em on the bottom of the pan.

besides by the time you get the plug out 99% of the oil is in the pan anyway

pillowmeto

and you can go back to regular after going synthetic, its just a myth that once you change, you cant go back

MAtt

wgc_3

Question Matt, then why would people say that because I have been told there is a slight film on the walls, that said if they change back to reg. oil, then this film will do damage to the walls?

Have you heard this is, or is it bs too? :confused:

WESCH

Hi

Must be bull..t , as you know you can buy synthetic , semi synthetic & natural dynosaur oil. How would they manage to mix natural with synthetic to get this semi synthetic stuff ?

What I heard is, if you have a week end driver only, it might be better to use the natural oil as it sticks better to the cylinder walls. The synthetic oil is thinner and runns off the walls quicker. That's possibly why leaks show up that could not be realised before with natural oil.

I switched to semi synthetic oil, once because of week end driver only, second because of cost as my engine does burn oil.
Just thought I give it some of the good stuff. :jester

Rgds. Gunther


[Modified by WESCH, 2:07 AM 4/11/2004]

6318

Really? I thought residual adhesion was one of the main benefits of synth?


[Modified by 6318, 4:14 PM 4/11/2004]

PRNDL

I was changing my oil cold also, seemed a lot easier, but I read somewhere (not a thread, but someplace I considered an authoritative source) that if you change your oil cold you might as well not even bother!! :eek:

here is a guy who thinks both ways are ok!! :)
then there is the middle view ac delco website says:

GDaina

this is :crazy: but it just goes to show you that it's true what they say...you ask a question and you will get five different answers, and all five are valid.

Chumpzilla

As far as switching from natural to synthetic, for a long time I was under the same impression some here were.... that you couldn't do it after running sythetic for some period of time... or that you couldn't switch back. A friend of mine who is a ChemE working for ExxonMobil assures me you can switch back and forth with no issues. She says the rumors you hear about bad things happening when you switch are bogus. I still use natural in all my vehicles but have thought about switching to sythetic. That's just one person's view, but it's a person I have some faith knows what they're talking about. Take it for what's it's worth.

As far as changing oil hot or cold, I have a '95 Camaro with over 150k miles on it and I have always changed it cold (usually) or just lukewarm, so as not to burn myself. And the engine is still running strong. For a '95 Camaro, that's pretty impressive. So I think changing your oil cold isn't leaving me any worse off than those who change it warm or hot.


[Modified by Chumpzilla, 5:30 PM 4/11/2004]