This is a 1985 Mercedes 300 CD acceleration test after a proper valve adjustment and diesel purge. This car is one of the fastest Mercedes Diesels that I have ever driven. www.dieselgiant.com
This is a 1985 Mercedes 300 CD acceleration test after a proper valve adjustment and diesel purge. This car is one of the fastest Mercedes Diesels that I have ever driven. www.dieselgiant.com
Dude that thing flys, it performs like it did out of the Sttutgardt factory 25 years ago, I have never heard of such a “purge” I had 300 D for ions ,been religiously faithfull to Marvel Mistery and Kleen diesel, if not I regurlarly add oil to the fuel maybe 1 quart in 10-15 gallons, they run better diesel fuel today is raspy dry pump and injectors don’t like it, valve adj does a big difference too .,,,,.. congrats. er
@beaman220
yeah thats true i just bought a 84 300sd with over 300k and she still runs great
@1ns4ne1d10t You prefer diesel, that’s your choice. But, do a like-for-like comparison. You compare a larger, turbocharged diesel engine with a small naturally-aspirated petrol engine. My 1.8 naturally-aspirated petrol does 0-60 in 6.9 seconds with no drama, tops out at nearly 150mph and still returns 42mpg on a motorway run with some fast twisties thrown in. The car weighs 1250kg, so isn’t some lightweight thing either.
Like-for-like, petrol beats diesel!
@donkmeister That’s an asinine argument to make. Diesel tech has come a long way both in terms of power and efficiency. A modern turbocharged diesel engine will produce just as much power a petrol one. Look at BMW 335d and 335i they have almost the same 0-60 but the diesel consumes less fuel.
You claim there is no drama – tops out at nearly 150 & it still returns 42 miles to the gallon, what a load of cock! Every 1.8 I drive at enterprise does not do 42 miles to the gallon, its a drama to get anything out of it, then they only do 35-38. You try racing your “6.9 second” 1.8 against a turbo diesel in mid-range, you will see the drama in yours when you try to keep up with a diesel at this speed. You won’t!
Donkmeister has never driven a Diesel, he wouldn’t know how refined they actually are. Its fine listening to petrolheads but they never get it right. If he drove an Automatic diesel there wouldn’t be any drama in the 0-60. Automatic diesels are much better than automatic petrols for refinement & speed. Its not about hitting 145 miles an hour, its how fast it can climb!
If “Like-for-like Petrol beats diesel” then why the hell are they finally doing away with inefficient 2.0 litre petrol engines in favour of 1.9 150ps diesels? You look at every GT nowadays its turning into Diesel, manufacturers wouldn’t turn round & start making diesel sport hatches if it wasn’t quick, they’d still install 2.0 petrol engines if they were useless tractors. Btw I have a Honda Civic Type R incase you call me a tractor lover .
I wasn’t aware that diesels could be
‘performance cars.’
@1ns4ne1d10t Actually, yes I have… I have driven many diesels (some turbo, some not, mostly VAG, some Peugeot, some Ford) and found they were smoother than I expected (a complement to a diesel, yes) with very linear torque across their rev range. However, when you get bored and actually TIME the performance with a stopwatch, you find they’re slower than a petrol even if they FEEL quick. Reason? My 1.8 litre is on tap from 2500-7500 rpm. Does any diesel have a 5k rpm power band?
@DaveGPMoto Firstly, your comparison of a petrol vs a TURBO diesel is precisely NOT a like-for-like comparison. Compare a turbo petrol with a turbo diesel. Anyway, you say “they” are doing away with petrol engines for diesels, please name who these manufacturers are!
There are diesel hatchbacks, yes. I can buy a Golf diesel tepid-hatch from the dealer. But where are the diesel sportscars and diesel supercars?
@xskeetskeetskeetx Indeed, I find your argument asinine… The petrol gets to 62mph in 5.6s, the diesel, takes 6.0s. 0.4 seconds on 5.6 seconds is a significant reduction in performance. Plus, the diesel costs £2000 more.
BMW have chosen to make a £38K diesel car that performs rather well. They also make an identical £36K petrol car that performs better. Asinine, methinks.
A Diesel needs 10-15 more Bhp to keep up with a petrol equivalent, no ones disputing that. I work for a rentals company, I drive both fuels 24/7, A Diesel might have a few more shifts to contend with but its quicker than a petrol on mid-range. Its not about being on tap from 2500-7500, have you tried to keep up with a fast moving Diesel in a petrol, casting aside the short powerband? Its impossible you get dusted!
You say “Does any diesel have a 5k RPM power band” like its some sort of boast, it doesn’t need a huge amount of revs because torque compensates! In any case you havn’t got the slightest clue about diesels have you? They are not always 100% restricted to 4,000 revs & thats your lot, if you are that worried you can have them with new internals which push them up to 6,000 revs. Duh!
@1ns4ne1d10t Sure, diesels have plenty of mid-range torque which works for some. I honestly find that a 1.8 petrol from 60-100mph in any gear is faster than a 1.9TDi in any gear. Depends on where you feel the mid-range lies!!! If I’m overtaking from 40mph on a country lane, I will usually go from 3rd gear (3k rpm at 40mph). But, in a diesel it may be quickest to use 4th for torque. Some people prefer that, but I prefer to know I’m getting past a bit quicker regardless of higher engine revs! 🙂
A 1.8 petrol from 60-100 is faster than a 1.9 TDi? that is such turd it really is… You have not driven a Diesel at all. If you have ever driven a 1.9 TDi you will know that its 3rd gear after 40Mph, not 4th gear. I go from 3rd gear for an overtake, 3rd goes up to 70 miles per hour on a TDi. You aren’t getting past quicker on high engine revs, a diesel will flash past quicker than yours will. Oh dear, you really have a lot to learn!
Your claim that a 1.8 petrol overtakes faster than a 1.9TDi is such arse over shit coming from your head that I have to copy & paste what you said & display it buddy. I’ve never seen this much crap before but theres always a first.
@donkmeister you are having a joke with us all right? you just said a 1.8 petrol beats a 1.9TDi 60-100 in any gear? what the hell? you really don’t know anything do you. A 1.9 TDi has loads more mid-range punch than a 1.8 like, a lot! It doesn’t just feel faster it actually goes faster, I am not a diesel fan by any mile but you have got it all tits up. A Diesel has more torque, everyone else knows that except you!
And now I’m supposed to add my two cents? … There’s no point in having a discussion that’s based on some foolish claims.
I know one thing that my TDI isn’t named a Cupra for nothing 😉
what’s this beauty get for mpg?
haha i have this exact same car!!!!!! im getting everyting on it fixed on it this summer!! great car
its so slow, it took ages to get over 80 mph, i almost fell asleep waiting 4 it to reach 80 mph lmao
goes after 40…
I have just bought the special spanners to do the valve adjustment on my 300 TDT. What do you mean by “diesel purge”. If there is a benefit to this proceedure I would like to try it out but I am not sure what you mean.
More speedy than I thought. Beautiful car, too.
K&N cone filter replacing that whole intake thing and puttin a straight pipe exhaust would cut over a second and a half off of the 0-60