Fuel efficient gas compact car vs diesel SUV

jim_jimphen

Mga sir, patulong po sana ako sa pag decide kung anong car ang bibilihin ko. San po kaya ako mas makakatipid ng fuel cost, compact car na gas or diesel SUV? Thanks.

kelunji

Ano muna pag-gagamitan mo? Marami ka ba dala/pasahero? Ano biyahe mo, malayuan ba at hindi matrapik?

jim_jimphen

City driving lang. Pero syempre plan din na gamitin sa travel to provinces. Plan ko sanang bumi ng 1.3 to 1.5 sedan pero nalilito talaga ko if I'm going to get deisel SUV.

avantemd

nasa pag gamit lang yan. kahit naman sobrang tipid ang SUV. e kung di mo magagamit ang advatage nito (space, seating capacity, etc) lugi ka pa rin dahil mas mahal ang pagbili mo ng SUV

K.I.L.L.

You need to look at several factors including how long you plan on keeping the car since you don't want to take a big hit when you sell your car.

A diesel engine's fuel is cheaper but it requires strict and religious maintenance with oil changes every 4,000-5,000 including regulr fuel filter changes. Diesels I think become quite efficient when you run them for a distance. Their engines hae more bottom-end torque too so they're a favourite of haulers and travellers.

A petrol engine won't require as much maintenance as the diesel but the fuel would be more expensive.

jim_jimphen

avantemd wrote: »

nasa pag gamit lang yan. kahit naman sobrang tipid ang SUV. e kung di mo magagamit ang advatage nito (space, seating capacity, etc) lugi ka pa rin dahil mas mahal ang pagbili mo ng SUV

Wala naman sanang problema sa presyo ng SUV sir avantemd, gusto ko lang sana talagang malaman is kung mas makakatipid ba ko sa cost ng fuel sa diesel SUV kesa sa cost ng compact car na gas per day.

avantemd

jim_jimphen wrote: »

Wala naman sanang problema sa presyo ng SUV sir avantemd, gusto ko lang sana talagang malaman is kung mas makakatipid ba ko sa cost ng fuel sa diesel SUV kesa sa cost ng compact car na gas per day.

i understand sir. i mean kung enough na ang sedan sainyo, yun nlng. example a compact sedan, sabihin nating 900k. diesel suv sabihin nating 1.2M. pang gas na po yung 300k na difference. ilang litro ng gasolina yun.

pero if you'll gonna need the extra space of suv or gusto nyo talaga yung taas, looks, at kung ano pa man. go..

but if i'll answer your question. medyo mas mataas ang km/liter ng sedan kaysa diesel due to the heavier body of SUV. pero mas mura naman ang diesel. so di rin nagkakalayo

jim_jimphen

K.I.L.L. wrote: »

You need to look at several factors including how long you plan on keeping the car since you don't want to take a big hit when you sell your car.

A diesel engine's fuel is cheaper but it requires strict and religious maintenance with oil changes every 4,000-5,000 including regulr fuel filter changes. Diesels I think become quite efficient when you run them for a distance. Their engines hae more bottom-end torque too so they're a favourite of haulers and travellers.

A petrol engine won't require as much maintenance as the diesel but the fuel would be more expensive.

Thanks for the info sir KILL. It's a good point. The maintenance here is another factor to look for if I opt for Diesel engine. Hmmm.. I'm starting to make my mind here. Maybe kayang tapatan ng honda city yung angas ng mga SUV. What do you think?

kelunji

jim_jimphen wrote: »

Thanks for the info sir KILL. It's a good point. The maintenance here is another factor to look for if I opt for Diesel engine. Hmmm.. I'm starting to make my mind here. Maybe kayang tapatan ng honda city yung angas ng mga SUV. What do you think?

I keep hearing this argument re: maintenance is higher for a diesel engine vs gasoline. Can someone please define what exactly is the difference between the 2, say for example oil changes? Because I have owned both diesel and gas engined vehicles, and I see no practical difference in what I do to both of them during an oil change.

K.I.L.L.

kelunji wrote: »

I keep hearing this argument re: maintenance is higher for a diesel engine vs gasoline. Can someone please define what exactly is the difference between the 2, say for example oil changes? Because I have owned both diesel and gas engined vehicles, and I see no practical difference in what I do to both of them during an oil change.

Hey man, here is my own personal experience.

I have both diesel and petrol versions of almost the same vehicle which are both SUVs. For both, I do not use fully synthetic. I just use plain mineral oil from Petron. For the diesel, I use Petron Trekker and for the petrol, I use Rallye. All parts I use are OEM such as filters.

For the diesel version which uses a 4 cylinder engine, I have to put in 7 litres of oil and my oil change intervals are every 4,000-4,500 to ensure that I do not smoke belch. I also change my fuel filter and air filter every 10,000 and I have to change my ATF and ATF filter every 20,000.

For the petrol version which uses a 6 cylinder engine, I have to put in 5 litres of oil and my oil change intervals are every 5,000. My air filter gets changed every 10,000 and my fuel filter every 20,000. My ATF and ATF filter gets changed every 40,000. Spark plugs get changed every 15,000.

Everything else is about the same as I flush all my fluids (coolant, brake, power steering, differential) out every year around January-February.

Of course fuel consumption differs too. For the diesel, I get 6 kilometres a litre while the petrol gives me 4 kilometres to a litre. At the end of it, it evens out in my opinion since my fuel cost is higher for the petrol vehicle but my maintenance for the diesel is also more expensive. However, the diesel vehicle's resale value is still higher by roughly 100,000 in the secondary market compared to the petrol.

kelunji

Well here's my experience during oil changes:

Diesel AUV with a 2.5L engine takes 4 to 4.5L of oil (Trekker), replacement oil filter every 6 months (I do not use the odometer measures wheel motion, and the engine still runs whether the car is cruising or at standstill in traffic), fuel filter and airfilter every 2 oil changes and gear oil change every 4 oil changes.

Compact sedan with a 1.6L engine takes 4L of oil (Rallye), with same interval changes for everything else as diesel, w/ the exception of the air filter (KNN) and sparkplugs every 4-5 oil changes.

Every oil change practically costs the same for me, as long as I don't need to change the sparkplugs.

The AUV gives 16km/L and the sedan 9-10km/L.

K.I.L.L.

kelunji wrote: »

Well here's my experience during oil changes:

Diesel AUV with a 2.5L engine takes 4 to 4.5L of oil (Trekker), replacement oil filter every 6 months (I do not use the odometer measures wheel motion, and the engine still runs whether the car is cruising or at standstill in traffic), fuel filter and airfilter every 2 oil changes and gear oil change every 4 oil changes.

Compact sedan with a 1.6L engine takes 4L of oil (Rallye), with same interval changes for everything else as diesel, w/ the exception of the air filter (KNN) and sparkplugs every 4-5 oil changes.

Every oil change practically costs the same for me, as long as I don't need to change the sparkplugs.

The AUV gives 16km/L and the sedan 9-10km/L.

What excellent mileage from your AUV! I wish I can get that kind of mileage. You also do good maintenance man. I can imagine your vehicles giving you years of service.

Sorry for the off-topic but I have heard some guys discuss the merits of cleaning the exhaust system of a diesel using a brush and a pressure washer to help minimise black smoke. Have you ever tried this? I even came across a Nissan Patrol GQ before who modified his exhaust system by drilling a hole (which he can seal) close to the engine block through which he sticks in a water hose to clean out his exhaust system of carbon soot.

kelunji

K.I.L.L. wrote: »

What excellent mileage from your AUV! I wish I can get that kind of mileage. You also do good maintenance man. I can imagine your vehicles giving you years of service.

Sorry for the off-topic but I have heard some guys discuss the merits of cleaning the exhaust system of a diesel using a brush and a pressure washer to help minimise black smoke. Have you ever tried this? I even came across a Nissan Patrol GQ before who modified his exhaust system by drilling a hole (which he can seal) close to the engine block through which he sticks in a water hose to clean out his exhaust system of carbon soot.

Its actually a 16+ year-old Isuzu Hilander. It used to actually do 18-19km/L, but I guess its already past it. Yes I sometimes jab a hose into the exhaust and wash out the soot, especially before an emissions test.

Anyway, reading your post and comparing it with my experience, reinforces my belief that in the long run, diesel will still win out.

K.I.L.L.

kelunji wrote: »

Its actually a 16+ year-old Isuzu Hilander. It used to actually do 18-19km/L, but I guess its already past it. Yes I sometimes jab a hose into the exhaust and wash out the soot, especially before an emissions test.

Anyway, reading your post and comparing it with my experience, reinforces my belief that in the long run, diesel will still win out.

Isuzu makes very reliable and durable cars in my opinion. You just need to give them a bit of TLC to make sure they don't belch black smoke. My only experience with Isuzus though are with their trucks. I'm a big believer in diesel and I strongly feel that diesels are perfect for our driving conditions here especially since it floods.

I love diesels so much that my grail rig is a Land Cruiser 70 series with the 1VD-FTV V8 diesel. Unfortunately, it is currently only available in RHD. Maybe in the future they'll make it available in LHD.

Azulbanirpal

Nice suggestion on the exhaust. Maybe I can remove the whole exhaust system except ther manifold and use high pressure water spray to remove soot as much as possible.

Diesels are what I call workhorse engines. Ever wonder why jeepneys can haul lots of passengers and cargo despite the engine being ill maintained? Diesel, because these engines achieve high torque even on low revs.

kelunji

Azulbanirpal wrote: »

Nice suggestion on the exhaust. Maybe I can remove the whole exhaust system except ther manifold and use high pressure water spray to remove soot as much as possible.

Diesels are what I call workhorse engines. Ever wonder why jeepneys can haul lots of passengers and cargo despite the engine being ill maintained? Diesel, because these engines achieve high torque even on low revs.

You could, thats what some motorcycle owners do, especially for those who still use 2-stroke engines. But its a hassle for larger vehicles such as cars.

Azulbanirpal

I see, so it is true about cleaning the exhaust. Well I have time this weekend, also since my 4x4 is high no need to have a car lift.
Diesels are unfairly known to be dirty because a lot of owners do not maintain their vehicles properly. In fact even gasoline engines are the same.

subaru_sti

Modern diesel engines is much more efficent and overcome disadvantages of earlier models of higher noise and maintenance costs. diesel fuel cost per kilowatt produced is thirty to fifty percent lower than that of gas engines.

jim_jimphen

K.I.L.L. wrote: »

Hey man, here is my own personal experience.

I have both diesel and petrol versions of almost the same vehicle which are both SUVs. For both, I do not use fully synthetic. I just use plain mineral oil from Petron. For the diesel, I use Petron Trekker and for the petrol, I use Rallye. All parts I use are OEM such as filters.

For the diesel version which uses a 4 cylinder engine, I have to put in 7 litres of oil and my oil change intervals are every 4,000-4,500 to ensure that I do not smoke belch. I also change my fuel filter and air filter every 10,000 and I have to change my ATF and ATF filter every 20,000.

For the petrol version which uses a 6 cylinder engine, I have to put in 5 litres of oil and my oil change intervals are every 5,000. My air filter gets changed every 10,000 and my fuel filter every 20,000. My ATF and ATF filter gets changed every 40,000. Spark plugs get changed every 15,000.

Everything else is about the same as I flush all my fluids (coolant, brake, power steering, differential) out every year around January-February.

Of course fuel consumption differs too. For the diesel, I get 6 kilometres a litre while the petrol gives me 4 kilometres to a litre. At the end of it, it evens out in my opinion since my fuel cost is higher for the petrol vehicle but my maintenance for the diesel is also more expensive. However, the diesel vehicle's resale value is still higher by roughly 100,000 in the secondary market compared to the petrol.

Tons of informations. I'm learning a lot from you guys. Thanks a lot si KILL..

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