Hi, let's talk about OIL - PeachParts Mercedes-Benz Forum

240Joe · #1 02-27-2007, 05:24 PM

Or EARL, as they say in TEXAS.

Thanks,
__________________
240Joe

Don't Change your oil, EVER!

'80 USA 240D, Auto, 340K miles (never blown up)
'83 300D Auto, 175k miles (never blown up)

Certified ASS-HOLE (Automotive Secret Society- Head Of Logistics Engineering)

MS Fowler · #2 02-27-2007, 05:28 PM

Have you no shame?!
Don't wer have enough oil threads?

I propose a new rule:
No one may start a new oil thread without signing an affadavit that they have already read every page of every oil thread in the archives. Maybe the moderators could flag those threads and keep count of who has read them all.

240Joe · #3 02-27-2007, 05:31 PM

Oil IS the only thing worth talking about. Everything else is so boring. People that don't know which end of a screwdriver to hold are buying these cars and trying to maintain them by listening to a bunch of half ass mechanics.

240Joe

MS Fowler · #4 02-27-2007, 05:33 PM

Careful, some might resemble that remark.

Dubyagee · #5 02-27-2007, 05:39 PM

I agree that all oils should not be changed without sampling to verify its limitations. But the other extreme of ignoring the oil is idiotic.

For the record, assumption is the mother of all f*ckups. Be careful with the assumption the mechanics here are all "halfassed" if that was what you meant.

300EVIL · #6 02-27-2007, 06:10 PM

The way I see it, frequent oil changes will NEVER hurt your engine. Infrequent oil changes could POSSIBLY hurt your engine. I enjoy my vehicles and plan on keeping them a long time. I change my Amsoil synthetic every 3K miles and I don't mind the cost. It's like an insurance policy.

Here's a good way to see the difference. Remove the oil cap form any of my engines and peer inside with a flashlight. You can see nice and shiny metal with a nice glossy oil coating. That's the way it should be....... Not all varnished up or black and gooy.
Adam

justinperkins · #7 02-27-2007, 07:36 PM

Quote:

Originally Posted by 300EVIL

The way I see it, frequent oil changes will NEVER hurt your engine. Infrequent oil changes could POSSIBLY hurt your engine. I enjoy my vehicles and plan on keeping them a long time. I change my Amsoil synthetic every 3K miles and I don't mind the cost. It's like an insurance policy.

Here's a good way to see the difference. Remove the oil cap form any of my engines and peer inside with a flashlight. You can see nice and shiny metal with a nice glossy oil coating. That's the way it should be....... Not all varnished up or black and gooy.
Adam

I don't think anyone (240Joe) has ever argued that frequent changes will damage your engine, only your pocket book and the environment (more changes = more waste oil).

300EVIL · #8 02-27-2007, 08:02 PM

Quote:

Originally Posted by justinperkins

I don't think anyone (240Joe) has ever argued that frequent changes will damage your engine, only your pocket book and the environment (more changes = more waste oil).

They don't just dump that stuff down the drain ya know..... At least I don't. I'd rather pay the $80 per vehicle every 3 months than worry about burning up my rings and bearings. I drive HARD! by the way.

http://www.recycleoil.org/

justinperkins · #9 02-27-2007, 10:24 PM

Quote:

Originally Posted by 300EVIL

They don't just dump that stuff down the drain ya know..... At least I don't. I'd rather pay the $80 per vehicle every 3 months than worry about burning up my rings and bearings. I drive HARD! by the way.

http://www.recycleoil.org/

Recycling used oil (which everyone should do) is only half of it. It's gotta come from somewhere doesn't it?

That was 240Joe's main argument (I think it's a perfectly valid one), all I'm doing is restating what he's already said.

antonino · #10 02-28-2007, 08:52 PM

Dear Benz-LGB, I am sorry but I cannot answer your techical question. I can only offer the following information as I too own a 1991 300CE (new to me for 1 year and gorgeous) I was told by the dealer, after many questions posted by me on this forum and to many benz owners, to run 10-40. I do run 20-50 in my Alfa Spider but that is an entirely different animal. Hope this helps...personally, I think the 20-50 is to heavy for the 300CE.

Antonino

cmac2012 · #11 02-28-2007, 08:47 PM

Quote:

Originally Posted by justinperkins

I don't think anyone (240Joe) has ever argued that frequent changes will damage your engine, only your pocket book and the environment (more changes = more waste oil).

If you recycle your old oil, where's the waste? All of it is used for stuff that would require new petro if there were no recycled oil to be had.

I understand it's used for making new engine oil, lighter fluid, and as fuel for ocean going freighters. Other uses, no doubt.

Who and what is 240Joe? I've never run into a lady who had anywhere near that interest in motor oil. And the picture, come on...

waybomb · #12 02-27-2007, 09:03 PM

Quote:

Originally Posted by 300EVIL

The way I see it, frequent oil changes will NEVER hurt your engine. Infrequent oil changes could POSSIBLY hurt your engine. I enjoy my vehicles and plan on keeping them a long time. I change my Amsoil synthetic every 3K miles and I don't mind the cost. It's like an insurance policy.

Here's a good way to see the difference. Remove the oil cap form any of my engines and peer inside with a flashlight. You can see nice and shiny metal with a nice glossy oil coating. That's the way it should be....... Not all varnished up or black and gooy.
Adam

Synthetic every 3k? Why 3k, why not 1k, 2k, or 4k? Why that number? What is so darn magical about 3000 miles? What does Amsoil have to say about this? I would guess, using the logic stated, that a change every 1k would be better. 1k changes would not hurt your engine, so why not change at 1k? If the answer is economics, then why not 4k? I'd like to comprehend the logic.

waybomb · #13 02-27-2007, 09:07 PM

From www.amsoil.com:
Frequently Asked Questions

Motor Oils

Why are AMSOIL Motor Oils capable of extended drain intervals?

AMSOIL Synthetic Motor Oils are highly resistant to the destructive effects of heat, and do not break down like petroleum oils. This means that AMSOIL Motor Oils can provide much longer drain intervals than conventional lubricants.

300EVIL · #14 02-27-2007, 09:14 PM

Quote:

Originally Posted by waybomb

Synthetic every 3k? Why 3k, why not 1k, 2k, or 4k? Why that number? What is so darn magical about 3000 miles? What does Amsoil have to say about this? I would guess, using the logic stated, that a change every 1k would be better. 1k changes would not hurt your engine, so why not change at 1k? If the answer is economics, then why not 4k? I'd like to comprehend the logic.

Good question. In my engines, thats when the oil typically starts to turn very dark. I also have a buffer in there. I've gone as far as 5K due to being too buisy to change the oil. That rarely ever happens though. I usually change it before 4K.

The key here is that when it's not a nice brownish/yellow anymore, I change it.

BTW, If you think that's too frequent, blown alcohol and up drag engines get an oil change every quarter mile!!

waybomb · #15 02-27-2007, 09:31 PM

Quote:

Originally Posted by 300EVIL

Good question. In my engines, thats when the oil typically starts to turn very dark. I also have a buffer in there. I've gone as far as 5K due to being too buisy to change the oil. That rarely ever happens though. I usually change it before 4K.

The key here is that when it's not a nice brownish/yellow anymore, I change it.

BTW, If you think that's too frequent, blown alcohol and up drag engines get an oil change every quarter mile!!

I change the oil in my blown 750 hp 572 cubic inch motors every ten hours or so.

But oil turning dark does not mean the additive package has been depleted or the oil has broken down.

I've sent a note to AMSOIL asking them to provide a recomended / suggested oil change interval on a 4 cyl engine:
stock, city only, highway
40% more hp than stock, city only, highway
And the asked if that recomendation changes with V6, L6, or V8 engines.

If they reply, I'll paste whatever their response is. Whatever their answer is, we must remember they are a marketer of the product, and may be slightly biased toward a shorter interval. I am thinking their response will be somewhat unclear, but will definately be higher than 3k in all instances. Let's see, I can't wait!