How to calculate fuel savings

c.p.w.g.w

Just wondering if there is anyway to determine the potential fuel savings going from petrol to a hybrid

mickdw

Do you mean hybrid or plug in hybrid?
If it just a Toyota style hybrid that doesn't plug in just work on the quoted mpg.
If its a plug in, then it depends totally on your usage and how and where you charge.
You could get from 35 mpg if you don't charge to a million mpg equivalent if you charge it free on public charger and never use the petrol engine at all.

c.p.w.g.w

mickdw wrote: »

Do you mean hybrid or plug in hybrid?
If it just a Toyota style hybrid that doesn't plug in just work on the quoted mpg.
If its a plug in, then it depends totally on your usage and how and where you charge.
You could get from 35 mpg if you don't charge to a million mpg equivalent if you charge it free on public charger and never use the petrol engine at all.

Shelf charging I think is we are looking at, very early stages

Black_Knight

c.p.w.g.w wrote: »

Shelf charging I think is we are looking at, very early stages

Regular hybrid so.

Shelf charging sounds cool though.

kaahooters

c.p.w.g.w wrote: »

Just wondering if there is anyway to determine the potential fuel savings going from petrol to a hybrid

Its about the same mpg as going to a diesel car, but it depends on what you have now and what you want to change to.

KCross

c.p.w.g.w wrote: »

Just wondering if there is anyway to determine the potential fuel savings going from petrol to a hybrid

To answer that you need to tell us what you are driving now and what mpg you are getting from it and what you plan to buy.

And importantly, what kind of driving you do.... is it mainly low speed urban driving or do you do alot of motorway commuting?

c.p.w.g.w

KCross wrote: »

To answer that you need to tell us what you are driving now and what mpg you are getting from it and what you plan to buy.

And importantly, what kind of driving you do.... is it mainly low speed urban driving or do you do alot of motorway commuting?

Typical Week

5 journeys to work 35km round trip on mainly dial carriage way.(175km total)
Weekend can vary from 40-60km driving total.
So average week 225km.

Current car is 1.2 fiesta, roughly 25-30€ a week on fuel.

Chippy01

c.p.w.g.w wrote: »

Typical Week

5 journeys to work 35km round trip on mainly dial carriage way.(175km total)
Weekend can vary from 40-60km driving total.
So average week 225km.

Current car is 1.2 fiesta, roughly 25-30€ a week on fuel.

I do around 650kms per week, and the weekly fill up is about €40.
(Corolla Hybrid Saloon)

c.p.w.g.w

Chippy01 wrote: »

I do around 650kms per week, and the weekly fill up is about €40.
(Corolla Hybrid Saloon)

Is there much difference re tax compared to similar car of petrol?

Idbatterim

Doubt you’ll save much on fuel costs. The motor tax and your weekly fuel spend are already very low. Unless you went total electric

c.p.w.g.w

Idbatterim wrote: »

Doubt you’ll save much on fuel costs. The motor tax and your weekly fuel spend are already very low. Unless you went total electric

Full electric would be my preference, but herself doesn't like the idea especially if we decide to go away for a weekend.

With regards tax, we will be moving up from a fiesta size wise. It's very much 12-18 months down the road to be honest

Idbatterim

c.p.w.g.w wrote: »

Full electric would be my preference, but herself doesn't like the idea especially if we decide to go away for a weekend.

With regards tax, we will be moving up from a fiesta size wise. It's very much 12-18 months down the road to be honest

The biggest factor is total cost of ownership. While you may well save a little bit on fuel and tax. Depreciation and loan interest if applicable , often wipe out any savings on fuel and tax and indeed increase total ownership cost

What will your budget be ?

c.p.w.g.w

Idbatterim wrote: »

The biggest factor is total cost of ownership. While you may well save a little bit on fuel and tax. Depreciation and loan interest if applicable , often wipe out any savings on fuel and tax and indeed increase total ownership cost

What will your budget be ?

Depending on my job situation, but currently 20,000 without a loan

Idbatterim

You might get an ionic for that budget next year

c.p.w.g.w

Idbatterim wrote: »

You might get an ionic for that budget next year

That's not including possible money from fiesta too

KCross

c.p.w.g.w wrote: »

Typical Week

5 journeys to work 35km round trip on mainly dial carriage way.(175km total)
Weekend can vary from 40-60km driving total.
So average week 225km.

Current car is 1.2 fiesta, roughly 25-30€ a week on fuel.

So, rough calculation your fiesta is doing about 7l/100km

A new Toyota hybrid would probably do about 4.5l/100km, maybe even better than that.

So you are saving about 2.5l of petrol for every 100km's you drive. For the driving you have detailed thats going to save you <€500 per year in fuel so not really going to justify buying a new car!!!

kaahooters

If you went to an older hybrid, say Honda jazz, (6 - 7 K€) you'd get approx 5.4 l/100km, so. You'd be down to roughly 15(?) a week for the same driving as now.

And if you went to aa prius (roughly 10 - 12 k €) ou'd get roughly 4.7 - 4.9 l/100km so down to 12 a week Roughly.

If you went to a leaf 30kwh say (17k€) you'd charge like twice a week for €4 ionic would be about the same?

If its available to you go electric its the best option for you, and keep the fiesta for longer drives. If needed.

krissovo

KCross wrote: »

A new Toyota hybrid would probably do about 4.5l/100km, maybe even better than that.

Would a Hybrid doing mostly dual carriageway miles hit that efficiency?

n97 mini

krissovo wrote: »

Would a Hybrid doing mostly dual carriageway miles hit that efficiency?

Nope. You'd be looking at very close to what a typical petrol engined car (as hybrids for the most part don't run on diesel) of similar CC would achieve.

kaahooters

krissovo wrote: »

Would a Hybrid doing mostly dual carriageway miles hit that efficiency?

Yes, the newer hybrids would be about the same as a auto diesel the same size in motorway / dual carriage driving, and better in town city.
People don't "like" hybrids in Ireland as diesel is cheaper at the pump, but hybrids get pretty much the same mpg and less maintance than a diesel.

adunis

Just buy an Ioniq and be done with it,it will be akin to the starship enterprise vs. the mayflower,looking at your milage it will cost you less than 3 quid a week on "fuel"(night rate at home) re going away....200+/- 20km stop for 25 mins,repeat.
Please just ignore the hybrid thing,it will take you about 5 mins to work out my feelings on them.
Nothing wrong with a leaf but an Ioniq is just better on many fronts,i3 yummy if you can deal with the size/price ideally ignore Rex and 60ah.
Zoë fine car especially ze4.0,new one imminent will be a game changer imo.

KCross

krissovo wrote: »

Would a Hybrid doing mostly dual carriageway miles hit that efficiency?

Depends on the dual carriageway I suppose, but my assumption is that the OP isnt doing motorway speed on that dual carriageway.

I've driven the Niro PHEV with a dead battery, so effectively in hybrid mode, and it managed 5.4l/100km @ 120km/h (GPS speed) from Dublin - Cork.

It would easily do 5l/100km if i drove at 100km/h and the Niro is a brick compared to a Toyota hatch so I think 4.5l/100km is do-able in the OPs scenario... it depends on the road, traffic, conditions, style of driving etc.

Regardless of whether its 4.5l or 5l doesnt really change the basic point.... the fuel saving from going from the 1.2 Fiesta to a new Hybrid are relatively small... a few hundred per year.