Autocar India
30w

I am planning to buy a BMW M340i for long-distance trips into wildlife reserves, as I have a strong interest in wildlife. I have two concerns, one is the E20 petrol. The M340i engine is a high-compression engine and needs high-octane fuel. With E20 petrol now available across the country, will this cause any issues for my engine? The other worry is the low tyre profile on bad roads, which may lead to punctures. Do give me your best advice.

Verified
30w
On E20 fuel, you don’t have to worry at all. In fact, you should be happy because the base octane rating for E20 fuel has jumped from 91 octane to a minimum of 95 octane or even higher. Hence, this suits the 11.0:1 compression ratio of the M340i’s B58 engine, and now, instead of hunting for high-octane fuel, you can use fuel anywhere, as you are now assured of 95 octane.
A bigger concern are the low profile tyres, which are staggered with 225/40 R19 in front and an even lower 255/35 R19 at the back. This could be a problem on bad roads, where the tyres could be vulnerable to impact damage.
One way to protect the tyres against punctures, but not guaranteed, is to pump up the tyre pressure by about 3-4PSI to make the sidewalls stiffer. This reduces the flex in the sidewalls and makes them more resistant to impact damage, but quite honestly, the BMW M340i is not a car we would take into the jungle!
BMW M340i

BMW M340i

Explore cars mentioned

Was this helpful? Ask a follow-up

Want to sell your car?

Sell your car at the right price, without the stress.

More questions on similar cars

1d

Hi Experts, thank you for your previous advice! Based on your recommendation, I booked the Toyota Innova Hycross GX(O) Petrol 6-seater in Avant-Garde Bronze in Hyderabad, with delivery promised for August-end. However, I am facing massive FOMO due to the heavily camouflaged 2027 facelift spotted testing, and ongoing fuel confusion. Since I plan to keep this car for 15-20 years, I urgently need your final guidance on whether to cancel or take delivery: The Facelift (Expected Jan 2027): Is it worth cancelling and waiting 12-18 months for? Will I miss out on major cosmetic/interior design changes? Will Toyota bring safety tech like ADAS down to this Petrol GX(O) trim, or will it remain exclusive to the Rs. 35 lakh+ Hybrids? If the updates are genuinely worth it, I am willing to wait. My concern is fuel, warranty and resale over 20 years. The current car is E20-ready. Given my 15-20 year ownership plan, if E20 fuel is discontinued in the future like E5/E10, will filling up E25/E30 void my Toyota engine warranty? Will an E20-rated car suffer a massive hit in resale value when E30 becomes the national standard? Does an E30-compliant engine offer any real longevity or mechanical benefit for my low running of 4,000 km/year over two decades? Should I cancel now, or happily proceed with my August delivery? Best regards, Aarav Mehta.

Verified
8m

Take delivery of the Hycross GX(O) petrol in August and do not wait for the facelift. The 2027 update will bring cosmetic changes and likely some interior tweaks, but it is unlikely to fundamentally change the ownership experience of the GX(O) petrol. Toyota typically reserves ADAS and more advanced safety tech for higher trims, and there is no strong indication that the GX(O) petrol will suddenly gain those features with the facelift. More importantly, the Hycross is already a fundamentally strong product with a proven powertrain, excellent reliability and a reputation for long-term durability, which is exactly what matters for a 15-20 year ownership plan.On the fuel front, your concerns are understandable but largely overblown. This petrol car is E20-compliant, and there is no official roadmap beyond E20 at this stage. Even if higher ethanol blends are introduced in the future, manufacturers typically engineer a margin of tolerance into their engines, and the impact is usually limited to a slight drop in fuel economy rather than any catastrophic mechanical issue. At 4,000 km a year, the difference is negligible over two decades. Resale value is driven far more by the Hycross’s reputation for reliability than by marginal changes in ethanol compliance.The only reason to wait would be if you are genuinely unhappy with the current GX(O) specification and are hoping for a major feature upgrade. Otherwise, you are better off taking delivery now and enjoying a car that is already one of the most dependable long-term ownership propositions on the market.

VehicleToyota Innova HyCross

Expert reviews worth reading

Popular discussions right now

Posted on: 17 Dec 2025