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#1
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Do I need an oil change?
It's been 5k miles since I last changed my oil, using the Mobil1 5W40 Turbodiesel oil. In those 5k miles, I've had to add 5 or 6 quarts. It's not leaking, I guess it's burning. So, it's not like I have 5k mile old oil in there, so do I really need to spend $50 on 8 quarts or can I just change the filter and assume all to be well in lube land?
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1983 MB 300SD Turbo Diesel |
#2
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Quote:
Something is not right here. Do you see a lot of blue smoke in the exhaust? How many miles has your car got? |
#3
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You'll probably get all kinds of different responses....if it was me, and with that oil, I'd let it and the filter go another 2500 miles with your replenishment/usage.
The acid test would be to send a sample off and have it tested.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
#4
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Doesn't smoke much at all. And the ALDA is removed. I don't push her too hard from a stop, which is when I would see the most smoke from the missing ALDA. I know it's not good. I think it's being sucked into the turbo.
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1983 MB 300SD Turbo Diesel |
#5
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I would change the filter and switch to MUCH cheaper oil until I found the fix to keep the consumption down.
Rotella 5W40 syn is like 10.00 per 4quart bottle... maybe go to some dino rotela or mobil 1300... check your vacuum pump for consumption, look over your air filter and see if it's totally covered with oil. you may need to rebuild your oil catch can in there. good luck.
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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere! |
#6
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The air filter is definitely covered with oil. Any links for oil catch can rebuild?
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1983 MB 300SD Turbo Diesel |
#7
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Does it have much blowby? That could be where a lot of the oil is going. Every 5-6k when I do my 5w40 synthetic changes I usually need maybe 1-1.5qts of makup oil in that time period, and our '83 (with no blowby at all) needs maybe .5qt
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#8
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Last time I did the oil cap check for blowby there was little to no movement.
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1983 MB 300SD Turbo Diesel |
#9
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Something just does not add up here...That's way too much consumption for no leaks and no smoke...
When do you check the oil level? It should be done either on a cold engine or 5-10 min after engine shutdown.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K |
#10
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If I had consumption like that, I'd only change the filter every 4k miles.
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Cheers, Robert |
#11
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You're wasting your money with that kind of oil consumption.
If it already burns 6 quarts of oil with synthetic you don't need to "preserve" the engine with synthetic, it's too late for that.
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1985 CA 300D Turbo , 213K mi |
#12
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Yeah I'd be runnin' Rotella 15w40 dinosaur oil...nice and cheap.....and with consumption like that, a 55gallon drum starts to make sense!
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-diesel is not just a fuel, its a way of life- '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k) |
#13
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I agree, abandon synthetic on that engine. Straight 40wt diesel rated oil would be even better.
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#14
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If the engine is burning that much I'd use regular dino 15w40. M1 is to expensive to keep topping up like that! 5k miles is up their on a 617, they really soot up the oil.
I'm at 3,000 miles on Delvac 1 5w40 in my 603, the level remains unchaged. I wonder if the level will move at all when I change the oil at 5k miles.
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1999 SL500 1969 280SE 2023 Ram 1500 2007 Tiara 3200 |
#15
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That's a lot of oil -- sure your vacuum pump isn't sucking it out?
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