xtr3mx7 Posted July 22, 2022 Share Posted July 22, 2022 Hi guys, I've always been using the Shell V Power Diesel B7 (as per recommendation of German Auto to use Premium Diesel) in my F34 and was happy with the mileage with a full tank as it could go beyond 1k km (a trip from Nonthaburi to Songkhla and I was still having a quarter tank left). However, in the recent months, a full tank goes much less (around 750-800 km) for same trip. I wondered why and I started to test with 600 baht top up to see how long it can last for the past few months. I found out that the car could barely make 230-250km on 600baht now. I always keep my speed less than 80km/h at 1300-1500 rpm so that the car takes less fuel. I keep wondering why the sudden change as I'm following the same service intervals as per recommendation by the dealership. With that being said, I wanted to know what are the differences between the Shell V Power Diesel B7 and the PTT UltraForce Diesel B7. Are there any differences and can I swap to PTT UltraForce Diesel B7? Would it give better mileage? Thanks in advance for your answers/recommendations/help. Link to comment Share on other sites More sharing options...
Kwasaki Posted July 23, 2022 Share Posted July 23, 2022 11 hours ago, xtr3mx7 said: With that being said, I wanted to know what are the differences between the Shell V Power Diesel B7 and the PTT UltraForce Diesel B7. Use what the manufacturers manual says not the planks in dealerships. My truck can use B20, B10, & B7 whatever fuel garage the difference in kilometres travelling was minimal it only difference shown would be in the way I drove at the time or temperature of the time of year. Anything else in all in your head IMHO. 1 Link to comment Share on other sites More sharing options...
fredob43 Posted July 23, 2022 Share Posted July 23, 2022 (edited) I have always used premium Diesel. But the other month I changed to B7 as that's what premium is, with they say additives??? I get 28+ LT of B7 for my 1000bht I normally put in, against less than 22 I get with premium. Enough to give me 100+ Km more for the same monies. Right have I found any difference in Power, less KPL well No. According to the comp: in my lump it's returning the same if anything a bit better. If your worried about KPL and cost, put B7 in you shouldn't have any problems. It's a diesel for buddha sake they will run on cooking oil. Edited July 23, 2022 by fredob43 1 Link to comment Share on other sites More sharing options...
HauptmannUK Posted July 24, 2022 Share Posted July 24, 2022 B7 indicates that the fuel contains 7% biodiesel. Another parameter is the fuels CIN ('Cetane number'). A higher Cetane number indicates a greater propensity to autoignite. Its the opposite of 'Octane number' for petrol. Most cars require a CIN between 45-55. In most countries fuel must have a minimum CIN of 50 or thereabouts. Fuel suppliers tend not to put CIN on the pumps - its possible the different fuels you are using have different CIN and this will result in slightly different power and economy. Higher CIN gives more power. 2 Link to comment Share on other sites More sharing options...
DavisH Posted July 24, 2022 Share Posted July 24, 2022 I would have thought that a bmw diesel vehicle should run on Euro5 compliant diesel. In Thailand, that is only PTT premium and Bangchak (leaf). I usually use only PTT premium in my crv, but occasionally use regular B7. Never used shell as its more expensive. Link to comment Share on other sites More sharing options...
Kwasaki Posted July 24, 2022 Share Posted July 24, 2022 33 minutes ago, DavisH said: I would have thought that a bmw diesel vehicle should run on Euro5 compliant diesel. In Thailand, that is only PTT premium and Bangchak (leaf). I usually use only PTT premium in my crv, but occasionally use regular B7. Never used shell as its more expensive. Well PTT is Thai Shell is not. Link to comment Share on other sites More sharing options...
HauptmannUK Posted July 24, 2022 Share Posted July 24, 2022 3 hours ago, DavisH said: I would have thought that a bmw diesel vehicle should run on Euro5 compliant diesel. In Thailand, that is only PTT premium and Bangchak (leaf). I usually use only PTT premium in my crv, but occasionally use regular B7. Never used shell as its more expensive. Main difference between Euro 4 and Euro 5 Diesel is that 4 is 50ppm sulphur and 5 is 10ppm sulphur. That leads to a minor difference in DPF loading. Both standards allow for 7% FAME. Should not lead to noticeable change in fuel consumption. Problem in Thailand you can't always be sure what you are getting. Link to comment Share on other sites More sharing options...
DavisH Posted July 24, 2022 Share Posted July 24, 2022 9 hours ago, Kwasaki said: Well PTT is Thai Shell is not. Hqave you got a link to show that PTT premium is NOT Euro 5? Because most of the links I can provide show that it is. Link to comment Share on other sites More sharing options...
Kwasaki Posted July 25, 2022 Share Posted July 25, 2022 (edited) 2 hours ago, DavisH said: Hqave you got a link to show that PTT premium is NOT Euro 5? Because most of the links I can provide show that it is. I nearly always use PTT fuel stations because they have 7-11 and I have no interest in fuel except for my motorbike also I don't care what it is for diesel engines all I do is by the cheapest whether it's B20 B10 or B7 because I can. Edited July 25, 2022 by Kwasaki Link to comment Share on other sites More sharing options...
PJ71 Posted July 25, 2022 Share Posted July 25, 2022 6 hours ago, Kwasaki said: I nearly always use PTT fuel stations because they have 7-11 and I have no interest in fuel except for my motorbike also I don't care what it is for diesel engines all I do is by the cheapest whether it's B20 B10 or B7 because I can. So your answer to the mans question is No - lol. Link to comment Share on other sites More sharing options...
MJCM Posted July 25, 2022 Share Posted July 25, 2022 I used to put in V-Power all the time, but when it reached 53 THB per liter my wife started complaining and now we put in B7 and on the next fuel stop V-Power. Don't notice any major difference in mileage on a full tank! Link to comment Share on other sites More sharing options...
Kwasaki Posted July 25, 2022 Share Posted July 25, 2022 (edited) 25 minutes ago, PJ71 said: So your answer to the mans question is No - lol. Just because you believe what your told don't worry about what my answer is. Edited July 25, 2022 by Kwasaki Link to comment Share on other sites More sharing options...
Kwasaki Posted July 25, 2022 Share Posted July 25, 2022 15 minutes ago, MJCM said: I used to put in V-Power all the time, but when it reached 53 THB per liter my wife started complaining and now we put in B7 and on the next fuel stop V-Power. Don't notice any major difference in mileage on a full tank! You won't. ???? 1 Link to comment Share on other sites More sharing options...
PJ71 Posted July 25, 2022 Share Posted July 25, 2022 18 minutes ago, Kwasaki said: Just because you believe what your told don't worry about what my answer is. you're Link to comment Share on other sites More sharing options...
MJCM Posted July 25, 2022 Share Posted July 25, 2022 (edited) 21 minutes ago, Kwasaki said: You won't. ???? I agree. We are doing this already for several weeks, 1 tank B7 next one V-Power. The only difference is the amount we are paying at the pump for the same amount of petrol. Edited July 25, 2022 by MJCM 1 Link to comment Share on other sites More sharing options...
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