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Noisy engine, fuel
240d
Always used Power Service according to directions. Recently in warmer weather I started using about 1/2 of what it called for and noticed the engine got noisier. Last fill used about 2x normal and it seems to be getting quieter. Anyone else notice anything like this? |
#2
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Its 100% psychological.
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#3
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I disagree...I have had experiences when I have filled my tank and noticed some fuels cause more clatter and nailing, especially at idle. I have more trouble with Mobil than with Sunoco so I usually use Sunoco but when forced to use Mobil I add some power service (white bottle in winter, grey in summer) and it does quiet it down. Both products have additives which raise the cetane of the fuel so I don't think it is psychological.
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz |
#4
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Quote:
I bought fuel for the truck once at a station that I had never bought from before and it immediately started a noticable idle knock which went away instantly when I refilled again a month later. (I don't drive the truck much).
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-Evan Benz Fleet: 1968 UNIMOG 404.114 1998 E300 2008 E63 Non-Benz Fleet: 1992 Aerostar 1993 MR2 2000 F250 |
#5
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All in the mind.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#6
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People should agree to disagree...if you ever heard one of these motors run on pure diesel purge you would know that what you burn can certainly have an effect on how noisy the motor is. Somewhere on this site is a video which demonstrates it rather dramatically...you hear clatter and nailing one minute and as soon as the DP goes in the engine goes to "sewing machine mode". Some people claim biodiesel also runs that way.
I suspect the cetane of DP is very high too and simulates "super premium" fuel. If Power service is able to increase the cetane then why wouldn't you believe it could quiet the engine?
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz |
#7
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It would be very expensive to run on pure Diesel Purge to get from A to B. But I cannot agree with you more that diesel engine runs quieter with biodiesel or WVO/SVO as I run my diesel on WVO.
As for adding additive or diesel from different gas station then it is all subjective. People claims all sort of things with better mileage, quieter engine, more power, cleaner injectors etc etc. Who knows. If it makes one happy then spend the $$ and just keep doing it.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#8
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Quote:
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Marty D. 2013 C300 4Matic 1984 BMW 733i 2013 Lincoln MKz |
#9
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Quote:
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed. W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html 1 X 2006 CDI 1 x 87 300SDL 1 x 87 300D 1 x 87 300TDT wagon 1 x 83 300D 1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry. |
#10
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Quote:
Whether or not it helps is another question.
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Terry Allison N. Calif. & Boca Chica, Panama 09' E320 Bluetec 77k (USA) 09' Hyundai Santa Fe Diesel 48k (S.A.) |
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