15w40 rotella in my 240D. Change the oil every 6 months

Sorry I had to pick WD40 - just for fun!

But seriously I use Castrol magnatech when ever I can get a cheap load delivered from Germany.

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

Rotella 5W40 in the diesel. The gas pot gets Rotella 15W40, which I've been using in all my gassers since 2004.

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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 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.

I just use whatever brand of 15W40 the parts store has on the shelf in gallon jugs. The car's got 240,000 miles on it, it's not going to know the difference.

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1981 Mercedes 300TD, 1994 Honda Civic Del Sol
http://mefi.us/images/fuelly/smallsig-us/67195.pnghttp://mefi.us/images/fuelly/smallsig-us/103885.png

I don't know where you get your information, but Amsoil makes Group III and group IV synthetics. They only made "real synthetics" from the early '70s until the '90s where some of the lower-grade "synthetic" offerings from other companies caused them to start selling the Group III stuff. Same with Mobil 1, used to all be the good stuff, now they sell both grades for marketing reasons.

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Gone to the dark side

- Jeff

Thanks for the replies everyone!

Yesterday at Walmart I picked up some Rotella T5 10W30 Synthetic because it went on clearance for $5 a gal vs $19

My car has 217K on it, if the car has run Dino oil all it's life would you think it's ok to run a synthetic or should I stick to the Chevron Delo 400 or Mobil 1 Delovac I've been running?

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http://i52.tinypic.com/23lblox.jpg
1980 Mercedes Benz 300TD
227K Miles

Should be no problems. I switched to 5W40 synthetic a hair after 300,000 miles. The only differences I noticed were very slightly better fuel economy and my minimal oil consumption went to no oil consumption.

Edit: Oh, and cold weather starting improved slightly. This was more of an issue in my 240D, which had loop glow plugs and was really past due for injectors.

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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 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.

Rotella 15-40 in everything except the 2 stroke outboards. Gas or diesel one oil year round!
Don

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Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles

Ok awesome, I'll give it a try, I bought 3 Gal of the Rotella T5, $15 for 3 gal you can't go wrong

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http://i52.tinypic.com/23lblox.jpg
1980 Mercedes Benz 300TD
227K Miles

I run tella 15W 40

All the big truck drivers I know run it and they get serious mileage. My benz had 20w 50 for 99K miles but I switched it over to what I have always run. Seems to be working just fine.

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On the hunt...
1985 300D----Sold
1985 300TD---Sold
1983 300SD---Sold

Usually Castrol, but I have gone to what was on sale a while back when I loaded up on that Delvac for dirt cheap.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]

I use Caterpillar diesel oil (15w40) in all our diesels. We get it in 205 ltr drums (60 US Gal).
If its good enough for our most expensive diesel, its good enough for the others.
We dont own any gassers to try it in.
Its cheaper than the alternate as we get so much at a time.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

X2

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Mike

82 Spider
86 560SL (For Sale)
87 CX25 TRD Turbo 2
89 Milano Verde
89 Mondial t Coupe
92 300D
94 E420

Mobil 1 5W30 in the Gassers
5W40 (alternate between Redline and Rotella T6) in the Diesels
Amsoil WCT 10W30 in the F250s

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'84 300SD sold
124.128

John Deere Plus 50 is a great oil for old diesels