Gasoline or gasahol? So confused

[problemfarang]

Hi again guys,

This time im confused about the fuel i should use for the best result. 

 

Mazda cx30sp 2021 manuel says e10, e20, e85 and 95. Only 4 kind. Seller strictly told me no 91. Ok

 

Of course i will use 95. But which one?? Have 2 types of 95. Gasoline and gasahol. Now not sure thai manuel but USA manuel says use unleaded gas or fuel. 

So which one is unleaded.. gasoline or gasahol. Or i can use both? Or it doesnt matter as long as it says 95? Or what is the best for my  car? 

 

Also i checked some website and everyone kimda agreed that shell is the best. Is it? I always prefer ptt or esso. Which reminds me another thing. Today i filled my tank second time since i bought and saw 2 95 at caltex.. 1 was normal 95 and the other was gold95.. (both orange color) pump boy explained me i can use both but gold95 is more expensive. It take cares engine..

 

So whats the best for my car... 

 

Thanks

[problemfarang]

Im also reading good things about E85.. what you guys are thinking? Many websites say its actually good for engine. Cleans all fuel systems and all.

[driver52]

11 minutes ago, problemfarang said:

Im also reading good things about E85.. what you guys are thinking? Many websites say its actually good for engine. Cleans all fuel systems and all.

no way that stuff is a load o pish! it has 15% ethanol in it.......ethanol is not good for your engine, your pipes (it dries them out)

I know newer cars are more 'tolerant' of it (apparently) but I'd avoid the ethanol stuff like the plague

can you get 98 octane in Thailand?

[problemfarang]

1 hour ago, driver52 said:

no way that stuff is a load o pish! it has 15% ethanol in it.......ethanol is not good for your engine, your pipes (it dries them out)

I know newer cars are more 'tolerant' of it (apparently) but I'd avoid the ethanol stuff like the plague

can you get 98 octane in Thailand?

No 98. The best is 95.. so i think i will go with 95

Car manuel says e10, e85, e20 and 95 thats all

 

If im not mistaken 95 is also the most expensive in normal gasohols. 

[steve187]

4 hours ago, problemfarang said:

No 98. The best is 95.. so i think i will go with 95

Car manuel says e10, e85, e20 and 95 thats all

 

If im not mistaken 95 is also the most expensive in normal gasohols. 

use e20, seems to be the norm for newer cars

all fuels are unleaded,

yellow gasoline is ethanol free, its 95 and the dearest at 35+ baht

[Crossy]

5 hours ago, problemfarang said:

Car manuel says e10, e85, e20 and 95 thats all

 

That's pretty much all that's available (other than diesel, LPG and NGV), 91 and 95 are both E10 anyway.

 

As above E20 seems to be the happy medium but E85 is cheaper.

 

Try them all and see which suits your driving style best.

[jackdd]

15 minutes ago, Crossy said:

As above E20 seems to be the happy medium but E85 is cheaper.

But E85 is more expensive if you take the actual energy content into account. So there is no reason to use E85, costs more, and you need to refill more often.

Use E20, it's the cheapest.

[NumbNut]

I read somewhere a while back that there's issues with all gasohol/ethanol blends in regard to the direct injection which these modern Mazda engines employ. As I understand it, because the valve intake is only air with no fuel, the engine can coke/foul up over time if you use an ethanol blend, meaning a top end strip down is required around the 100 kay mark to clean the valve trains of the engine.

The cleaning action of benzine 95 is supposed to mitigate this intake valve build up.

Would be interested to hear from more learned members on the forum if this is the case or not.

[Crossy]

2 minutes ago, jackdd said:

But E85 is more expensive if you take the actual energy content into account. So there is no reason to use E85, costs more, and you need to refill more often.

Use E20, it's the cheapest.

 

Probably correct but I've never done the sums, only our mower and genset burn petrol (they used to get "real" 95 until the local outlet stopped selling it). All our vehicles burn diesel, even cheaper.

[canthai55]

7 hours ago, driver52 said:

no way that stuff is a load o pish! it has 15% ethanol in it.......ethanol is not good for your engine, your pipes (it dries them out)

I know newer cars are more 'tolerant' of it (apparently) but I'd avoid the ethanol stuff like the plague

can you get 98 octane in Thailand?

So ...

You can use E85 - which is up to 85% alcohol, but you can NOT use gasahol with 15% alcohol

555

[Kildonan]

Had been using the 91 (ethanol) on my 3 Lt Mazda,,, then the "oxygen sensor on my cat,", came on, in the engine light on the dash. Changed to 95,,,and after a while, it went out? 

[Kwasaki]

9 hours ago, problemfarang said:

Im also reading good things about E85.. what you guys are thinking? Many websites say its actually good for engine. Cleans all fuel systems and all.

The only problem is you ???? use E85 if you can get it, if not available at a garage where you stop for petrol you can use E20.

 

Both are the cheapest fuel usually no need to pay more. .

 

With your car you can use all petroleum available in any garage, you can use 91 as well,  the guy who told you that you can't hasn't a clue. 

 

I would always advise someone to stick to the same fuel available to you in your area. 

 

 

[Grusa]

If you ask for "benzine" you will get 100% gasoline. PTT, Caltex and PT have it in most major stations, bright yellow pump sign. Shell 95 is NOT 100% gasoline, no matter what they tell you, but probably ok for most vehicles.

 

Some years back Toyota in UK had problems with Shells' additives fouling up the engine, it took a while to work it out then they added a disclaimer to their warranty, disallowing Shell fuels in certain vehicles.

[KhunBENQ]

Once again

Ethanol will kill your engine bla bla

Gentlemen this is the 21 century.

After 128000 km my engine runs smooth as silk on E20 or Gasohol 95.

 

You have a brandnew flexfuel car which can take about all fuels available except Diesel.

91 octane will be a thing of the past some time ahead (plans to abolish have been suspended). So just forget it. Good for your lawn mover.

 

12 hours ago, problemfarang said:

e10, e20, e85 and 95.

 

E10 means Gasohol 95 in Thailand. Still the most used fuel for cars of all types. Available about everywhere.

 

E20: I used it (Mazda 2011) as long as the price difference to Gasohol 95 was bigger than now. Done at least 70000 km on it.

I now use Gasohol 95 for price reasons.

 

Gasohol 85: my car from 2011 is not specified for it so didn't try.

Still quite rare and selected stations only. Cheap (subsidized) but likely higher consumption (l/100).

 

Petrol/Gasoline 95: overkill and due to tax/contributions very expensive.

Even if fuel consumption might be lower it will not pay. And becomes very rare at selected stations only. So don't depend on it.

 

To find the most economic fuel you would probably do your own test runs.

 

Gasohol 95 or E20 is never wrong for your car.

 

My remarks about availability refer to PTT stations. Rarely used Bangchak. Never Esso, Shell or others.

[KhunBENQ]

Starting prices as of today at PTT (expect 0.5 or more depending on location).

The difference of 1.51 Baht from E20 to Gasohol 95 makes it uneconomic for my car.

Doesn't pay.

37.36 is Petrol/Gasoline without Ethanol. My next stations for that are 25 to 40 km away.

[problemfarang]

Im more concern about my engine. I dont mind spending some extra money for the fuel to protect the engine. I just scare if i use e20 or similars instead of 95 to damage the engine after 5 6 years. 

 

I have all gas stations around my house. And they have everything. 

 

But it seems thats not the case. I think i will stick with 95 or e20

 

Thanks guys. 

[KhunBENQ]

4 minutes ago, problemfarang said:

I just scare if i use e20 or similars instead of 95 to damage the engine after 5 6 years. 

Again: you have a brand new car. The models are running on all fuels since years.

"Flexfuel" motors exist since about 10 years. Mine is from 2011 and not yet specified for E85 otherwise I would have tried this too.

Very old cars (like 15 year old or more) might have problems with E20.

Our old Toyota (17 years) runs on Gasohol 95 as millions of other cars.

If you see a Thai person with an ordinary car at the Benzene (Petrol) 95 pump, take a picture.

[mahjongguy]

I usually put Gasohol 91 in my 2011 CRV. Sometime Gasohol 95 just for no particular reason. KM/L probably works out the same.  

 

So I don't go to Shell because they don't sell Gasohol 91 and their Gasohol 95 is hugely expensive because they say the additives are worth it. Sure.

[DavisH]

24 minutes ago, KhunBENQ said:

Again: you have a brand new car. The models are running on all fuels since years.

"Flexfuel" motors exist since about 10 years. Mine is from 2011 and not yet specified for E85 otherwise I would have tried this too.

Very old cars (like 15 year old or more) might have problems with E20.

Our old Toyota (17 years) runs on Gasohol 95 as millions of other cars.

If you see a Thai person with an ordinary car at the Benzene (Petrol) 95 pump, take a picture.

My wife always sticks in gasohol 95 in her swift. She compains about it not running as well on e20. Fuel consumption on e20 is worse as well. 

[problemfarang]

1 hour ago, KhunBENQ said:

Again: you have a brand new car. The models are running on all fuels since years.

"Flexfuel" motors exist since about 10 years. Mine is from 2011 and not yet specified for E85 otherwise I would have tried this too.

Very old cars (like 15 year old or more) might have problems with E20.

Our old Toyota (17 years) runs on Gasohol 95 as millions of other cars.

If you see a Thai person with an ordinary car at the Benzene (Petrol) 95 pump, take a picture.

thanks for the useful info. 

[problemfarang]

41 minutes ago, DavisH said:

My wife always sticks in gasohol 95 in her swift. She compains about it not running as well on e20. Fuel consumption on e20 is worse as well. 

i kinda agree with your wife. My Ford is also better with 95 

[transam]

1 hour ago, problemfarang said:

Im more concern about my engine. I dont mind spending some extra money for the fuel to protect the engine. I just scare if i use e20 or similars instead of 95 to damage the engine after 5 6 years. 

 

I have all gas stations around my house. And they have everything. 

 

But it seems thats not the case. I think i will stick with 95 or e20

 

Thanks guys. 

What does it say on your filler cap door...?

[Ralf001]

5 hours ago, jackdd said:

But E85 is more expensive if you take the actual energy content into account. So there is no reason to use E85, costs more, and you need to refill more often.

Use E20, it's the cheapest.

E85 works best with a dedicated ECU tune, big set of injectors and 30psi being forced in by a Hiroshima Hairdryer.

[fdsa]

the higher the alcohol percentage the better for the environment and worse for your car.

it's an easy choice: if you love your car - use benzine, if you love the environment - use alcohol.

 

2 hours ago, KhunBENQ said:

After 128000 km my engine runs smooth as silk on E20 or Gasohol 95.

the car just recovers from E20 shít every time you use the Gasohol 95.

[KhunBENQ]

From the specs of Mazda CX30:

Quote

Unleaded gasoline (petrol/benzene) or Gasohol E10 E20 and E85, 95 octane.

So just 91 octane (Gasohol 91) excluded.

As the OP described.

 

[KhunBENQ]

16 minutes ago, fdsa said:

the car just recovers from E20 shít every time you use the Gasohol 95.

I'll ask it for some applause

Laughable nonsense.

[sanuk711]

Honda Accord --6 years old-- made for E85, runs so well and so cheap.

I am up near the Lao border and can make to BKK on 1 tank--"Not an exaggeration" There are a few older stations that don't sell it--but usually is not a problem. Really efficient, cheap,  clean fuel.

 

I know some people feel that ethanol fuels will raise the price of food.....and that may be the case. Can only comment on how good I have found them to use.

[huyuli]

What should i use for a 1989 Toyota Corolla? Thanks.

[Kwasaki]

3 hours ago, fdsa said:

the higher the alcohol percentage the better for the environment and worse for your car.

it's an easy choice: if you love your car - use benzine, if you love the environment - use alcohol.

 

the car just recovers from E20 shít every time you use the Gasohol 95.

I take it you're an engineer with no experience what so ever. ????

 

5 hours ago, problemfarang said:

Im more concern about my engine. I dont mind spending some extra money for the fuel to protect the engine. I just scare if i use e20 or similars instead of 95 to damage the engine after 5 6 years. 

 

I have all gas stations around my house. And they have everything. 

 

But it seems thats not the case. I think i will stick with 95 or e20

 

Thanks guys. 

Can you do some reading up from experienced engineers instead of listening to Thai salesmanship.

[Kwasaki]

2 minutes ago, huyuli said:

What should i use for a 1989 Toyota Corolla? Thanks.

E10 91.