Approved Fluids for 451

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Permalink Reply by Steve on March 29, 2008 at 12:12pm

The links are too long for this board system. Simply copy and paste the whole thing into the address bar of your browser.

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Permalink Reply by Fiera on April 8, 2008 at 11:10am

yes, three links appear "error"

thks

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Permalink Reply by Fiera on April 7, 2008 at 2:40pm

hi.here at spain dealer use mercedes bottle with litle logo castrol and TQD type.

Motor oil:with max about 35Cº in summer, they use always 5W30.

and amsoil....is good?
best rgds

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Permalink Reply by Carlos on April 7, 2008 at 3:42pm

When i download the files, i get the message: pdf file corrupted. Can you open the pdf files?

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Permalink Reply by Farrel Droke on April 8, 2008 at 5:39pm

One more bit of info - the oil plug on pan is 24mm!! It's SO BIG I didn't have a socket big enough to fit! I did a quick measure with some calipers and made a trip to Sears. The screen seems to serve some confusing function since I didn't notice the plug was magnetic or anything. Anyway, the pan and plug are both aluminum and were factory assembled to a torque value I thought was WAY EXCESSIVE! I don't know the proper torque so I put a dab of Locktite Blue on it and put it at about 10 to 15 ft-lbs to make sure no threads get stripped.

The pan drain hole is practically big enough to do a lower-end overhaul through! Not really-just joking!

Lessoned learned - Make sure you have a 24 mm socket before you jack anything up! Also, factory torque may make plug removal a gut-busting experience!

Anyone know the correct torque for this thing?

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Permalink Reply by Jay Cohen on April 14, 2008 at 7:20pm

Did an oil change over the weekend with 5k miles on the car.
Used Castrol Syntec 0w-30 Euro Formula, a Mobile One M1-108 filter, and a MityVac fluid extractor to get the oil out thru the Dip Stick receiver. Took 3 quarts for fill, and no leaks. Oil looks really clean after a few miles driven. I could not get the darn oil plug on the pan out, so I went in from the top.

I think I like that better. No chance that I'll strip the Oil Plug threads that way.

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Permalink Reply by SATO on April 15, 2008 at 7:44pm

how do you know you have taken all the old oil out if you "drain" from the dip stick? just a Question?

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Permalink Reply by Jay Cohen on April 15, 2008 at 8:12pm

Well,
Specs say it holds 3.5 quarts including the filter. It took 3 quarts to fill with a new filter, and after I ran it for a few miles and rechecked it looked good and clean. Close enough I guess.

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Permalink Reply by Fiera on April 24, 2008 at 10:50am

BOT 328 is only a good 100% sintetic SAE 75W90 API GL-4 Castrol.

With all Daimler benz marketing and parafernalia of miraculous aditives,of course............but at 20€ liter here at Spain.

Having Aftermarket 5L 100% sintetic same SAE at 35€.................

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Permalink Reply by Matthew A Ziminski on April 24, 2008 at 12:41pm

Greetings all,

Has anyone added "Slick 50" or other brand of teflon coating oil? It seems to me from the discussions here that the high RPM high heat 71Hp engine is a good canidate to use such oils.
What your thoughts?
Matt

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Permalink Reply by Farrel Droke on April 24, 2008 at 1:44pm

I've used Slick 50 on vehicles in the past but could never see any real benefit. I think changing the oil on a reasonable schedule (NOT every 10,000 miles!) has helped me acheive very long engine life on many vehicles. My concern on Slick 50 is that the teflon particals that are supposed to 'embed' themselves into the interstitial sites, or pores, of the metal. Unfortunately, the teflon may be large enough to be caught by the oil filter on nearly the first pass thru the engine! Plus, I'm guessing that this little 3-banger is probably a high silicon content pressure cast block etched back to the hard silicon. There may be enough "holes" for the teflon to get into - if they can do so before the filter catches them!
I've studied the effect of moly-di-sulfide treatment on ferrous alloys in jet engines and found they are a HUGE benefit. Maybe we can get a comment about the alloy of the cylinder walls vs ring alloys from someone on the "inside" of Smart. The racing industry pretty much coats EVERYTHING they can with moly-di-sulfide with great results.
One more thing: Do Y'all remember the test Consumer Reports did on oil changes from several years ago? They did tests on taxis in New York City. They found that extending the oil change out to 12,000 miles DID have an detrimental effect on engine internal dimensions after 100,000 miles or so. They did not see any differences between 3,000 mile and 6,000 mile oil changes. They concluded that with 60 engines tested, oil changes at about 6,000 seemed about right for taxi cabs.
I plan to change oil on this 3-cylinger at about 6,000. My 6 cylinder Mercedes I let go out to 10,000 because it holds 9 quarts of Mobil 1! (Ouch!).

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Permalink Reply by mr bad example on April 24, 2008 at 7:05pm

maybe that's why my mercedes dealer charges $100 for an oil change! i plan on 5000 mile oil changes on my smart.
i remember when mobil 1 first came out and Popular Science tested a car by running it 100,000 miles on the same oil. they tore down the engine and it had negligible wear.

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