# Which fuel type **Source:** https://vwcaliforniaclub.com/threads/which-fuel-type.60906/ **Posts:** 12 --- ### L — 2026-01-30T13:24:47+0100 (Jan 30, 2026) Literally on verge of buying T7 California Ocean Diesel. The dreaded Euro 7 was dropped in casual conversation. We are inside Ulez boundaries. Now wondering if a Petrol would be better. --- ### B — 2026-01-30T13:48:00+0100 (Jan 30, 2026) I assumed you have a T7 Phev already from your user info to the left so why change? --- ### L — 2026-01-30T14:03:26+0100 (Jan 30, 2026) > [burton61 said:](/goto/post?id=770593) > > I assumed you have a T7 Phev already from your user info to the left so why change? > > Click to expand... We only had the Phev from June to Sept - we returned vehicle as unfit for use (battery issues & load capacity). Now looking again. I'll take phev off my details. --- ### — 2026-01-30T17:36:45+0100 (Jan 30, 2026) We run a diesel Cali,, but a mild hybrid petrol car (swapped out our diesel car this year). I think we’d probably go for a phev van if switching now. Diesel engines are generally robust, but as they get ever more complex to comply with environmental regulations, they can be problematic - especially if you don’t generally drive longer distances. So for a daily commute car, not so good. I now run an app to track the condition of the particulate filter and regens on the Cali. Wish we’d had it when running our diesel car - which started to give problems. Then there’s the environmental impact of diesel particles., and also the growing negative societal effects. So until EV vans become more realistic, I’d go for phev. --- ### S — 2026-01-30T18:41:23+0100 (Jan 30, 2026) > [Hawthorn37 said:](/goto/post?id=770616) > > We run a diesel Cali,, but a mild hybrid petrol car (swapped out our diesel car this year). I think we’d probably go for a phev van if switching now. > > Diesel engines are generally robust, but as they get ever more complex to comply with environmental regulations, they can be problematic - especially if you don’t generally drive longer distances. So for a daily commute car, not so good. > > I now run an app to track the condition of the particulate filter and regens on the Cali. Wish we’d had it when running our diesel car - which started to give problems. > > Then there’s the environmental impact of diesel particles., and also the growing negative societal effects. > > So until EV vans become more realistic, I’d go for phev. > > Click to expand... Which app do you use please? --- ### S — 2026-01-30T18:45:02+0100 (Jan 30, 2026) > [Lorri said:](/goto/post?id=770591) > > Literally on verge of buying T7 California Ocean Diesel. > The dreaded Euro 7 was dropped in casual conversation. > We are inside Ulez boundaries. > Now wondering if a Petrol would be better. > > Click to expand... It feels like mandatory euro 7 for ULEZ is way off - even given the upcoming November 2026 date - that only applies for new models, it's Nov 2027 for older models and vans / trucks / busses are still be to be announced from what I can see....there's no way they could enforce it as part of ULEZ zones for quite a while based on that (in my view at least) --- ### — 2026-01-31T00:09:39+0100 (Jan 31, 2026) > [stoobthealien said:](/goto/post?id=770622) > > Which app do you use please? > > Click to expand... DPF Monitor for VAG. You’d need a Carista or similar ODB2 dongle as well ( but no contract). I’ll paste a couple of posts below that should help you. It’s helping us ensure we don’t stop the van mid regen cycle (which typically takes around 15 minutes), and reassurance the particulate filter and EGR valve are operating okay. Post in thread 'Ignorance is bliss' Post in thread 'Ignorance is bliss' --- ### — 2026-01-31T05:44:57+0100 (Jan 31, 2026) I’m very happy with my choice of petrol. I went for petrol because I believe diesel engines have become so complex to cope with emissions and therefore can be unreliable. The petrol engine has plenty of torque, you will miss the four wheel drive as you can easily spin the front wheels on loose surfaces, but for me it is the best compromise. --- ### — 2026-01-31T18:57:48+0100 (Jan 31, 2026) > [Lorri said:](/goto/post?id=770591) > > Literally on verge of buying T7 California Ocean Diesel. > The dreaded Euro 7 was dropped in casual conversation. > We are inside Ulez boundaries. > Now wondering if a Petrol would be better. > > Click to expand... ULEZ 7 is for petrol and diesels. --- ### — 2026-02-01T08:59:57+0100 (Feb 1, 2026) > [Betsycalifornia said:](/goto/post?id=770673) > > ULEZ 7 is for petrol and diesels. > > Click to expand... It includes electric vehicles too, as it contains standards for particulate matter from tyres and brakes. --- ### P — 2026-02-01T21:34:21+0100 (Feb 1, 2026) We went for the PHEV as we have a home charger and really need 4 Motion for getting up into the Alps, which we visit regularly throughout winter. --- ### — 2026-02-08T09:03:59+0100 (Feb 8, 2026) If you consider Adblue and DPF issues strangling the complex diesel engine and the limited payload of the T7, the Petrol option appears to be the running favourite imo ---