E91 Straight Six Bearding
Discussion
legendracer said:
Am I doubting something?
E 92 330i N53B70, 2008.
Less than 50k miles. Fully serviced and pampered. Gets an occasional high rev blast for few minutes. Runs on 97 octane petrol only And sometimes mixed with redex petrol additive,which has solved the inconsistent idle during cold starts. Now it idles and engine sounds LOT smooth and silent than it was.
I don't know if I should say the avg mpg is 28.
Long drives like London-Manchester gives 40-41 mpg by sticking at 65-70 with cruise control or without.
But small 3 mile cold runs and city duty delivers only 20-21 mpg.
Out of 2000 miles 500 miles has been the 3 mile small runs in cold.
500 miles done in 40 zones, that's 30 mpg.
1000 miles on motorway at speed limits.
2000 miles.
Cost of fuel. £440 pounds
Cost per liter for 97 octane at tesco. £1.14 pounds. Isn't?
So what's average I should shout about. Is it 40 or 20 or 30.
Mind is comparing with a 4 cylinder petrol and diesel. Like a 320i or 520i or 320d or a VW Passat 2.0 TDI.
My yearly travel should be below 10000 miles but above 7000 miles.
Is there a question? what are you doubting?E 92 330i N53B70, 2008.
Less than 50k miles. Fully serviced and pampered. Gets an occasional high rev blast for few minutes. Runs on 97 octane petrol only And sometimes mixed with redex petrol additive,which has solved the inconsistent idle during cold starts. Now it idles and engine sounds LOT smooth and silent than it was.
I don't know if I should say the avg mpg is 28.
Long drives like London-Manchester gives 40-41 mpg by sticking at 65-70 with cruise control or without.
But small 3 mile cold runs and city duty delivers only 20-21 mpg.
Out of 2000 miles 500 miles has been the 3 mile small runs in cold.
500 miles done in 40 zones, that's 30 mpg.
1000 miles on motorway at speed limits.
2000 miles.
Cost of fuel. £440 pounds
Cost per liter for 97 octane at tesco. £1.14 pounds. Isn't?
So what's average I should shout about. Is it 40 or 20 or 30.
Mind is comparing with a 4 cylinder petrol and diesel. Like a 320i or 520i or 320d or a VW Passat 2.0 TDI.
My yearly travel should be below 10000 miles but above 7000 miles.
The mpg from your n53 seems fine to me.
bmwmike said:
legendracer said:
Am I doubting something?
E 92 330i N53B70, 2008.
Less than 50k miles. Fully serviced and pampered. Gets an occasional high rev blast for few minutes. Runs on 97 octane petrol only And sometimes mixed with redex petrol additive,which has solved the inconsistent idle during cold starts. Now it idles and engine sounds LOT smooth and silent than it was.
I don't know if I should say the avg mpg is 28.
Long drives like London-Manchester gives 40-41 mpg by sticking at 65-70 with cruise control or without.
But small 3 mile cold runs and city duty delivers only 20-21 mpg.
Out of 2000 miles 500 miles has been the 3 mile small runs in cold.
500 miles done in 40 zones, that's 30 mpg.
1000 miles on motorway at speed limits.
2000 miles.
Cost of fuel. £440 pounds
Cost per liter for 97 octane at tesco. £1.14 pounds. Isn't?
So what's average I should shout about. Is it 40 or 20 or 30.
Mind is comparing with a 4 cylinder petrol and diesel. Like a 320i or 520i or 320d or a VW Passat 2.0 TDI.
My yearly travel should be below 10000 miles but above 7000 miles.
Is there a question? what are you doubting?E 92 330i N53B70, 2008.
Less than 50k miles. Fully serviced and pampered. Gets an occasional high rev blast for few minutes. Runs on 97 octane petrol only And sometimes mixed with redex petrol additive,which has solved the inconsistent idle during cold starts. Now it idles and engine sounds LOT smooth and silent than it was.
I don't know if I should say the avg mpg is 28.
Long drives like London-Manchester gives 40-41 mpg by sticking at 65-70 with cruise control or without.
But small 3 mile cold runs and city duty delivers only 20-21 mpg.
Out of 2000 miles 500 miles has been the 3 mile small runs in cold.
500 miles done in 40 zones, that's 30 mpg.
1000 miles on motorway at speed limits.
2000 miles.
Cost of fuel. £440 pounds
Cost per liter for 97 octane at tesco. £1.14 pounds. Isn't?
So what's average I should shout about. Is it 40 or 20 or 30.
Mind is comparing with a 4 cylinder petrol and diesel. Like a 320i or 520i or 320d or a VW Passat 2.0 TDI.
My yearly travel should be below 10000 miles but above 7000 miles.
The mpg from your n53 seems fine to me.
Sometimes snake oil works..like this petrol additive which was never used in this car in its life. After 2 bottles of redex additive I can't make out any difference but the 1st bottle did make difference. After good thrashing at high revs with this additive, inconsistent idle is gone. But I wouldn't use it anytime soon or often.
But I have good experience with stanadyne diesel additive. Every time I used it in VW 1.5 TDI the difference was evident Vs without it.
By the way my doubt was regarding mpg. I'm slowing coming to terms with national speed limit. When a VW 1.6 or 2.0 TDI can easily cruise at 70 mph in comfort does this 270 bhp car make much sense. And won't the worst mpg for 2.0 petrol or diesel be 35 mpg? I know it's not just fuel cost that matters in ownership. Still,just for the sake of argument.
But I have good experience with stanadyne diesel additive. Every time I used it in VW 1.5 TDI the difference was evident Vs without it.
By the way my doubt was regarding mpg. I'm slowing coming to terms with national speed limit. When a VW 1.6 or 2.0 TDI can easily cruise at 70 mph in comfort does this 270 bhp car make much sense. And won't the worst mpg for 2.0 petrol or diesel be 35 mpg? I know it's not just fuel cost that matters in ownership. Still,just for the sake of argument.
So after learning the joys of running one decent tyre plus three ditchfinder specials (one Bridgestone Potenza, one Alventi Pace, one Jinuyu Gallopro plus one Landsail for good measure), I have decided that I've had enough "fun" for one lifetime at damp roundabouts and junctions. I'm thinking of getting four matching Michelin Pilot Sport 3 run flats. Would £556 be considered reasonable? And before anyone else starts, yes I appreciate that non run-flats would give a more supple ride but this car will be doing several South of France runs from Manchester so I don't relish the prospect of farting around pulling out a poxy aftermarket space saver when loaded to the gills with half a ton of Outwell's latest use of my money! 
gpfanuk said:
So after learning the joys of running one decent tyre plus three ditchfinder specials (one Bridgestone Potenza, one Alventi Pace, one Jinuyu Gallopro plus one Landsail for good measure), I have decided that I've had enough "fun" for one lifetime at damp roundabouts and junctions. I'm thinking of getting four matching Michelin Pilot Sport 3 run flats. Would £556 be considered reasonable? And before anyone else starts, yes I appreciate that non run-flats would give a more supple ride but this car will be doing several South of France runs from Manchester so I don't relish the prospect of farting around pulling out a poxy aftermarket space saver when loaded to the gills with half a ton of Outwell's latest use of my money!
I'm not sure how good the Michelin Pilot Sport RFTs are.I can definitely recommend the Goodyear Eagle F1s in RFT flavour. Replaced the Bridgestone RE050A RFTs on my wife's E91 and it made a big difference in terms of ride and tramlining.
The issue with RFT ride is more once you get to half tread depth and then it escalates quickly in terms of how awful it is. Mine was on PS3 rfts when ingot it and it wasn't too bad for a while before becoming awful. Same with the wife's F20 125i which we put a full set of F1 GSD3 rfts on. In fact she was after selling it because ahe hated the ride. Harsh and tramlined badly. But I persuaded her to swap for F1 non-rft and it she loved it after that.
Personally I'd still stick to non-rft and a good euro breakdown cover tbh. We toured round France in fact on non-rfts in my E91. I've only ever had one puncture in an RFT (screw in the tread) and it wasn't repairable (well it should have been but nowhere would do it) but you could drive on it. Just like you would have been able to if it was a non-rft which probably would also have been repairable.
Personally I'd still stick to non-rft and a good euro breakdown cover tbh. We toured round France in fact on non-rfts in my E91. I've only ever had one puncture in an RFT (screw in the tread) and it wasn't repairable (well it should have been but nowhere would do it) but you could drive on it. Just like you would have been able to if it was a non-rft which probably would also have been repairable.
Swervin_Mervin said:
The issue with RFT ride is more once you get to half tread depth and then it escalates quickly in terms of how awful it is. Mine was on PS3 rfts when ingot it and it wasn't too bad for a while before becoming awful. Same with the wife's F20 125i which we put a full set of F1 GSD3 rfts on. In fact she was after selling it because ahe hated the ride. Harsh and tramlined badly. But I persuaded her to swap for F1 non-rft and it she loved it after that.
Personally I'd still stick to non-rft and a good euro breakdown cover tbh. We toured round France in fact on non-rfts in my E91. I've only ever had one puncture in an RFT (screw in the tread) and it wasn't repairable (well it should have been but nowhere would do it) but you could drive on it. Just like you would have been able to if it was a non-rft which probably would also have been repairable.
Trust me. Die hard run flat people will never ever switch so save yourself the time and bother.Personally I'd still stick to non-rft and a good euro breakdown cover tbh. We toured round France in fact on non-rfts in my E91. I've only ever had one puncture in an RFT (screw in the tread) and it wasn't repairable (well it should have been but nowhere would do it) but you could drive on it. Just like you would have been able to if it was a non-rft which probably would also have been repairable.
If you must use run flats then switch to smaller wheels. My friend had an SE on 16 inch wheels and the ride with run flats was OK. I'd also stick to the thinner tyres which have a softer tyre wall. So I'd use a set of wheels with 4 tyres the same or 4 fronts.
My wife's E91 I'm keeping on RFTs. Because wife (and baby in the car). Better for them to be able to get home than be stranded somewhere. She does have breakdown cover but from time of call to actually been sorted can be hours.
My E63, I'm almost certainly going to ditch RFTs for Michelin Pilot Sport 4s. Much cheaper and it'll improve ride and handling. I've already got one of those BMW mobility kits you get with M models so I'll chuck that in the boot.
My E63, I'm almost certainly going to ditch RFTs for Michelin Pilot Sport 4s. Much cheaper and it'll improve ride and handling. I've already got one of those BMW mobility kits you get with M models so I'll chuck that in the boot.
helix402 said:
g3org3y said:
That's impressive! Given the cost, they should last for many years/miles! 
£250 for a new Pierburg+a bit more for a rad cap and BEHR thermostat. Should last till 412k miles!gpfanuk said:
ferrisbueller said:
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