Help me decide which is the better choice. I have 2 gas guzzlers, cefiro v6 and chevy venture also a v6. Sobrang lakas sa gas pag city driving. My choices are to convert one to lpg or sell one and buy a 2nd hand diesel auv. 1st choice crosswind 2nd choice adventure.

Both cars are driven approx 10,000 kms a year, 40% highway 60% city. Malimit ako sa highway kaya v6 yung mga auto.

Pros ng lpg conversion: same car (comfortable and spacious), same power, cheap fuel 25.18 per liter, enviormently friendly, kits are transferable should I decide to change cars in the future although has to be a v6 again.

Cons ng conversion: cost, will take 1 to 2 years to recoup cost depending on kit used.

Pros of AUV: frugality of diesel, 7 pesos cheaper than unleaded, better milage, cheaper cost per km compared to lpg since you get more km per liter, reliability (tibay ng crosswind and andventure).

Cons ng diesel: Noise, ride (giving up comfort), slow acceleration (i'm used to a v6 but not that big a factor since I'm trying to save), looks (don't like how they look but not a big deal), low resale value of my current cars, mausok common sa diesel at walang magagawa, will have to spend on maintenance after buying (change fluids etc. cause I won't know how they were treated by the previous owner)

What do you think? And thanks in advance.