Long term premium diesel users

[chalkeroochy]

I was filling up at either the BP or Shell at Mulgoa Rd Jamisontown (Penrith NSW) ...

Not anymore and thank to them the golf tdi was running rough, coughing & occasionally stalling until the engine warmed up

Took it to Indianautomotives (nice honest bloke) and a new filter (the old one was full of crap) plus a full tank of vortex diesel and it's running like new again

[MarksVRS]

It's your car and we can't change what you use, but consider this...

my van at 90,000km does on average 9.5L/100km (it is 5cylinders 2.5L TDI), is fully loaded with the tools 24/7 and majority of my trips are only 5km long (but not all) with 1-2 hours stops in between and I'm confident that it will stay in the same condition for a very long time.
Yours could fade out once you get close to 150,000km, the engine intake will be more blocked with the sooty deposits (lower quality fuel is partially responsible). Other benefit from cleaner fuel is that the fuel pumps and injectors will last longer.
The PD unit injectors can last long time and they do many in Europe report over 500,000km on the original PD injectors. So, using premium fuel gives my engine a better chance to last longer and be more reliable during its life.

The CR injectors, don't last that long (you will be lucky to get 250,000km out of them) and are expensive too. So, again using the premium fuel, should give you a greater reliability and maybe longer life for all fuel system components.

I appreciate everyone's acceptance in being able to freely offer opinions! I am sure I am not the only one just filling up on the cheapest day at the cheapest station. One thing is for sure - the two places we typically fill up at are always extemely busy so no fuel sitting around building up moisture and crud.....

Possibly one big difference is the planned mileage. I doubt I will ever do more than 50,000km in ANY car I own before trading it in. We tend to average around 10,000km per year, including 1-2 interstate trips! So our servicing is always based on time rather than distance.

[K1W1]

I am sure I am not the only one just filling up on the cheapest day at the cheapest station.

Things must be different in Sydney. In Vic the price of diesel doesn't fluctuate on the weekly cycle like petrol it just slowly goes up or down over a period of months.
These are my cpl prices between June 2011 (top) and this week (bottom). The higher prices were over Christmas but were also at a service station that is usually 2-3cpl more than the normal one I use.
141.5
139.9
139.9
139.8
138.4
139.9
138.4
138.4
139.9
139.8
141.9
141.9
139.9
142.9
146.9
145.9
144.8
144.8
144.8
142.8
141.4