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#1
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Rotella in a 300E?
This morning I went to look at a 1992 300E for sale around here. Beautiful car, great color combo, transmission checks out okay, but the owner told me he uses Shell Rotella diesel oil in the engine.
I've always been under the impression that you should use diesel oil in diesel cars and gasoline oil in gasoline cars. Am I missing something here? Edit: I may have posted in the wrong forum.. but I guess it pertains to a diesel oil. Last edited by alfa 75; 07-24-2008 at 08:13 PM. |
#2
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Diesel oil works in anything. Gasser oil is really only good for gassers. I used Rotella and Delo for years in a Lincoln Town Car and a Suzuki Samurai (both gas), and I'm continuing to use them in my 250 gasser.
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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar. 83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles 08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles 88 Jaguar XJS V12 94,xxx miles. Work in progress. |
#3
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Well, you learn something everyday I suppose. Thanks.
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Read the ratings on the back of the bottle. Basically even if it says Diesel oil on the front, if it's got an "S*" rating on the back, it's approved for gasoline engines too.
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1980 500SE/AMG Euro 1981 500SEL Euro 1982 380SEL 1983 300TD 1983 500SEC/AMG Euro 1984 500SEC 1984 300TD Euro 1986 190E 2.3-16 1986 190E 2.3 1987 300D 1997 C36 AMG 2003 C320T 4matic past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350 |
#5
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I would not use diesel oil in your gasser. I tried it in my 500sec and it made the hydraulic lash adjuster stick and tick.
I took it out and put in Mobil one 10w30 and the ticking stopped. I went back to the rotella thinking that now its clean and it wont tick, but it immediately started ticking again. Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#6
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Diesel oil, until recently, was loaded with zinc and phosphorus, which, in sufficient quantities, could poison catalytic convertors. Now that most of the zinc and phosphorus has been removed, it is probably harmless to a gas engine.
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Palangi 2004 C240 Wagon 203.261 Baby Benz 2008 ML320 CDI Highway Cruiser 2006 Toyota Prius, Saving the Planet @ 48 mpg 2000 F-150, Destroying the Planet @ 20 mpg TRUMP .......... WHITEHOUSE HILLARY .........JAILHOUSE BERNIE .......... NUTHOUSE 0BAMA .......... OUTHOUSE |
#7
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Quote:
I do notice that the heavier weight produces lower oil pressure than I'm used to seeing, and there is still some tick for an instant on startup. I'm glad I did it in warm weather...when I change the oil in the fall I will be going back to 10w30.
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1982 240D automatic Odometer quit at 307K...about 325K now |
#8
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In my experience heavier oil has always resulted in higher oil pressure.
Tom W
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC] ..I also have a 427 Cobra replica with an aluminum chassis. |
#9
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Of interest to tribologists
Rotella is also one of the VERY few oils left with ZDDP (a zinc diphosphate compound) still in it. Guys who build flat tappet V8s can tell you about the cam wear issues when oil makers stopped using it.
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1987 300D (230,000 mi on a #14 head-watching the temp gauge and keeping the ghost in the machine) Raleigh NC - Home of deep fried sushi! |
#10
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I'm not sure what to say, but I did notice an immediate difference. Unlike the gauge on my 240D, which is pegged at the top when the engine's much above idle, the gauge on the Rodeo is not. Slightly more hesitant to start, as well.
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1982 240D automatic Odometer quit at 307K...about 325K now |
#11
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its 15 weight oil, basically a really thick gooey oil for a gasoline engine, I wouldnt use it because of how thick it is ( too much oil pressure, at high rpm's and not enough oil getting to the bearings). But i do like the soot reducing compounds it has alot.
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Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? As long as they would add one additional commandment for you to keep thy religion to thyself. George Carlin (Wonder where he is now..) 1981 240d (engine donor 1983 240d) recently rebuilt engine hurray! - No more.. fought a tree and the tree won. pearl black 1983 240d 4speed (Converted!@$$%) atleast the tranny was rebuilt. |
#12
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what you need to look at is the api classification on the oil your buying. Different api classes are set up for different engines. Oils that are approved for diesels may resist break down from the fuel that always slips past the rings in our diesels.
I have been running the Rotella 15w40 in all my vehicles, including my Ranger V6, and several Benzes, one with over 300k on it. Ive had no problems with any of them running the Rotella. If you know anyone that has a membership in the Mercedes Benz club, thier rag has an article called the oil spot. In it they show the recommended oils for benzes gas/diesel and so on. I'm very happy with the Rotella and after a 2200 mile trip in my '82 wagon with 300K on it, the entire trip even back through the Allegheny mountains of PA she used LESS then a quart of oil. |
#13
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Alfa75 -- I used Rotella in both of my Alfas Romeo ('63 and '64 Guilia Spyder).
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#14
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Rotella 15/40 is a mixed fleet oil ,so has both diesel and gasoline ratings ( C&S ) perfectly acceptable for use in your car in warm weather,i would not run it in cold weather.
MY $.02 Don
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Red Green "This is only temporary,Unless it works!" 97 E300D 157000 miles 87 300TD ?141k? miles |
#15
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I use 5W-40 Rotella Synthetic in my Audi with no problems.
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95 E300 Diesel 200K |
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