V70: General - Reasonable fuel consumption? - Page 10

SnineT · Nov 9th, 2022, 19:41

Quote:

Originally Posted by bananarama

HA! I feel like a hypocrite because I'll never add Redex etc to the tank, but I'm OK with whatever it is BP/Shell have added; oh dear

Either way I do agree, keep the fluids and filters in good condition.

I use the diesel one when it's on offer for about £2 a bottle car always feels good under pedal, give it a try.

griston64 · Nov 9th, 2022, 20:02

Quote:

Originally Posted by SnineT

I use the diesel one when it's on offer for about £2 a bottle car always feels good under pedal, give it a try.

I've never used an additive in my D5 but did wonder about trying it

Is your S90T the D4 or D5 ?

al dm · Nov 9th, 2022, 21:08

Quote:

Originally Posted by bananarama

HA! I feel like a hypocrite because I'll never add Redex etc to the tank, but I'm OK with whatever it is BP/Shell have added; oh dear

Either way I do agree, keep the fluids and filters in good condition.

I put a bottle of STP 5 in 1 "Ultra" or whatever it's called and a bottle of STP high mileage diesel injector cleaner into my tank about a week or so ago.

I filled the tank to full and am now at about the half way point.

Have I noticed and difference so far? No. Not really. But I haven't done any long runs, mainly just pottering about 10 miles each way.

But for £20, it's probably decent preventative maintenance as I only use regular diesel.

A fuel filter change is on the cards in the near future.

al dm · Nov 9th, 2022, 21:11

Quote:

Originally Posted by Pidgeonpost

I had a nasty moment driving back from holiday in Cornwall years ago. I needed to brake unexpectedly and the sole of my sandal went beneath the brake pedal and my foot went on top of it. I lost a few fractions of a second wondering why I couldn't lift my foot before twigging the reason and recovering. I could, of course, have just continued to press on the brake pedal with my bare foot but you don't always think of these things at the time.

Sandals!!!!! You wear sandals?

I always wear heavy leather boots with a steel shank, shin, ankle and toe protection and a GoreTex lining as a minimum. Plus armoured and abrasion resistant jeans, jacket and gloves.

Oh, wait. That's on my motorcycles.

Carry on....

FreshAir · Nov 10th, 2022, 11:56

Quote:

Originally Posted by SnineT

I've a theory if they have a map designed for it then it might make a difference but afaik the cars leave the factory tuned for normal fuel.

This is relevant to petrol engine cars. Then the higher octane provides more pre-ignition resistance so much ignition advance can be used. This allows more power per cycle through higher combustion pressures.

A number of modern petrol engine cars auto tune the ignition based on knock sensors.

Tuning of diesels does not have the same issue so no need for premium diesel for any measurable performance gains. Diesel tuning is mainly limited by AFR/soot creation and exhaust gas temperatures. Add more boost then you an add more fuel at a very basic level without pushing soot levels too high.

Pidgeonpost · Nov 10th, 2022, 19:58

Quote:

Originally Posted by al dm

Sandals!!!!! You wear sandals?

I always wear heavy leather boots with a steel shank, shin, ankle and toe protection and a GoreTex lining as a minimum. Plus armoured and abrasion resistant jeans, jacket and gloves.

Oh, wait. That's on my motorcycles.

Carry on....

You had me worried for a moment. I'm a cautious driver, but all that leatherware...

Actually I was slightly suspicious of the post from @griston64 where he mentioned sandals. Seems he's in Scotland - far too chilly for sandals that far north.

griston64 · Nov 10th, 2022, 21:41

Quote:

Originally Posted by Pidgeonpost

I had a nasty moment driving back from holiday in Cornwall years ago. I needed to brake unexpectedly and the sole of my sandal went beneath the brake pedal and my foot went on top of it. I lost a few fractions of a second wondering why I couldn't lift my foot before twigging the reason and recovering. I could, of course, have just continued to press on the brake pedal with my bare foot but you don't always think of these things at the time.

No Sandals in my post !!