Ive put "Restore" in our Fiero for the last 2 oil changes, its doing weird stuff now, the oil was still clear (a tint of blue due to the restore" after 3000 miles, it still has normal oil pressure so i dont know whats going on, or if the restore has anything to do with it.

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06 VW Jetta TDI

My main concern for not using the stuff (Restore) in my 300sd and 300cd is turbo oil suply cloging. You know, when the turbo jumps out from under the bonnet and dances in wooden shoes.

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1985 300sd Dark Silver 250,000m
1983 300cd turbo Gold 200,000m

In my real world expirience, Lucas saved an 84 Subaru with 200,000 on it. Basically, went from overheating and bogging down on the grade to pulling it and staying cool at 60mph. Besides, but Lucas Oil stabilizer DOES NOT mix with Synthetic, they have a separate product for that.

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'80 300SD - 315,xxx miles,
'79 300SD - 199,xxx miles

It doesnt even mix with dino, look below on the bobistheoilguy link and youll see the stuff still foams up with delo 400 and Schaeffers Supreme 7000 dino oils.

http://www.bobistheoilguy.com/images/lucas/lucas.htm

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Current:
05 E320 CDI
07 GL320 CDI
08 Sprinter
05 Dodge Cummins
01 Dodge Cummins

Previous
2004 E55 AMG
2002 C32 AMG (#2)
1995 E300
1978 300D
1987 300D
2002 C32 AMG(blown motor :[
1981 300SD
1983 300SD
1987 300SDL
2002 Jetta TDI
1996 S420
1995 S500
1993 190E 2.6
1992 190E 2.3
1985 190E 2.3 5-Speed

Thanks for that post. I think I'll change my oil soon to get it out of my car. Ray

There's some misinformation here. Lucas doesn't foam in an engine. Maybe it does in a differential, but I used to use it and I tried in 5 different engines and it never foamed. And it mixes with any oil just fine. Whether it offers any benefit is another story. I don't think it does, unless the engine is extremely worn and needs extra oil viscosity to cushion things. But in that case, a thicker oil might do the same trick.

As far as the Restore additive goes, I tried it once in an 82 300D but I can't say that it did anything. Generally I don't believe in using any oil additives and most people will tell you the same thing because oils already contain a finely-balance package of additives and you don't wanna mess with it. Right now I'm trying Royal Purple oil which claims similar things as the Restore additive, but at least the whole thing is an oil and a reputable one it seems, and not just an additive.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

Let's see the video of the camera you stuck into the dip stick tube while the engine was running to verify this claim. That would verify that the oil was not foaming in the oil pan only BTW.

Let's see the video from the camera that "bobistheoilguy" stuck in a real engine or differential.

Again, good intentions or not, this bob guy is running a high-rpm electric motor driving small straight-cut gears with no load. It has absolutely NOTHING to do with how an oil and its additives will act in an engine, differential, or transmission. The viscosity does not scale down, it is not a valid test.

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Gone to the dark side

- Jeff

The point is that if Bob's test carried any validity in the real world, the oil in my pan would turn milky white from all the aeration and it would stay that way long enough for me to see it on the dipstick. Real engines and those electric gears that Bob used have even less in common than apples and oranges do.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL

If you drain your engine warm, you would see if there was foam. I HAVE NEVER SEEN FOAM from Luacas. I'm no scientist, but i have yet to see it foam. It's in my rear end of my 1980 300SD. This weekend i will drain that HOT just to see. I would rather know for myself. If it is foamy, you will all know. If not, than, you will all know.

I am NOT trying to promote this stuff, just sharing my expiriences. I figure, if it's all foamy, i'll be real happy to find out. If not, I'll still be happy to have fresh clean stuff in my differential!

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'80 300SD - 315,xxx miles,
'79 300SD - 199,xxx miles

If it doesn't meet some standard set by a reputable automotive engineering standards organization, don't waste your money or your time.

For example, products like diesel purge are a waste of your time and money.

Stand by for anecdotal testimonials to refute this statement.

From what I have seen DP is a waste.

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

When I used Diesel Purge, it started off essentially clear and turned increasingly black as it cycled through the system. Was it actually cleaning something or is it engineered to turn black as part of the hoax?

I had what would seem to be luck with restore in a mazda 323 with 250+m on it. really quieted down the engine, and seat of the pants was better. FWIW, the car lasted at least 30k after that. I added it every 2-3 dino oil changes. sold the car after about 15k, and the guy I sold it to drove it for 1 1/2 yrs, and sold it. still running fine.

so, on that engine, it did not hurt it, it seems.

Of course, I did not film any engine sumps, or do any tests on it at all. but it did seem to help, increased power, hill climbing. it seemed.

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1984 123.193 372,xxx miles, room for Seven.

1999 Dodge Durango Cummins 4BTAA 47RE 5k lb 4x4 getting 25+mpgs, room for Seven.

I ended up taking a second look at the Restore additive and I may have been wrong about it the first time, though only time will tell. According to the various write-ups about this product, it's not an oil additive because it's not meant to modify the oil's properties. Instead, it's supposed to be an engine additive because it acts directly on the engine, supposedly filling in groves in the cylinder walls, thereby increasing compression and/or reducing oil consumption. Both of my current Benzes have some engine noise issues so I gave the product another try.

So far I only drove my '96 E300 to work and back once with the additive and the engine already seems noticeably quieter at idle when the engine isn't fully warmed up yet. It's supposed to take 500 miles or so for the additive to really do its magic so I'll keep listening. On my 240D it's had no effect so far, but I've only driven it half the distance compared to my '96. It's also possible that the 240D's noise issues have nothing to do with compression and maybe it's a rod/bearing noise + some combustion knock from leaking valve seals. Just a guess. Of course if that's the case, then this additive will do nothing about it.

Last time I also failed to mention that when I first tried this additive several years ago in my ex-82 300D (my very first diesel), I later had my compression tested and the readings were higher than new engine specs! Unfortunately that was the only compression test I ever did, so I don't know if the additive had any contribution to the results. But the engine did seem to run smoother at the time than it ever did before or after.

Needless to say, this additive would be quite useless in a new engine or one that's in perfect condition. But it may be of some benefit in older engines that don't have really good compression. I'll let you guys know what I find out as I test this additive further in my semi-worn MB diesels.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL