Switch from Synthetic oil to Mineral oil...

[Howard Roark]

I have a six month old car that has synthetic oil. I want to change to mineral oil because I assume its better to change oil every 5th kms rather than every 10t kms. Its quite cheaper too.

It confuses me because I heard one of the T*Y*T# service advisors say that once you have synthetic oil, you cant change back to mineral oil...

Is it true or a misconception? Or is it just heresays and no basis for such statements?

Does anyone tried switching from synth to mineral? Any difference in performance?


TIA!

[meledson]

I have asked that question before I switched to Synthetic. The answer was "once you use synthetic, di ka na babalik sa mineral".

[artpogi]

I have a six month old car that has synthetic oil. I want to change to mineral oil because I assume its better to change oil every 5th kms rather than every 10t kms. Its quite cheaper too.

It confuses me because I heard one of the T*Y*T# service advisors say that once you have synthetic oil, you cant change back to mineral oil...

Is it true or a misconception? Or is it just heresays and no basis for such statements?

Does anyone tried switching from synth to mineral? Any difference in performance?


TIA!

some years ago ginawa ko change ng oil eh synthetic-mineral-synthetic-mineral and okay naman, wala naman masama nangyari sa engine, now puro mineral na lang basta sinusunod ko lang yung 5K change oil interval. My car is 10 years old and still doing fine.

As for the performance difference, sa totoo lang wala naman ako masyado naramdaman, kung meron man, insignificant para sa akin.

[zero]

the problem you may encounter is your engine might not be able to cope with the degradation in lubrication. well probably, your engine needs some preparation by using flushing oil. pero having a new car, i'll go with the synthetic oil and follow the periodic change oil schedule.

[Mile2]

I recently switch back to mineral oil from fully synthetic and so far no bad effect.

I had my PMS at Toyota Makati and when I said I wanted to switch back to mineral oil, all the SA told me was they don't use chemical based flushing and will have to use mineral oil to flush the engine. Mine was a 2.0 VVTI engine that uses 6 liters oil plus the mineral oil flushing of 5 liters.

[meledson]

I recently switch back to mineral oil from fully synthetic and so far no bad effect.

I had my PMS at Toyota Makati and when I said I wanted to switch back to mineral oil, all the SA told me was they don't use chemical based flushing and will have to use mineral oil to flush the engine. Mine was a 2.0 VVTI engine that uses 6 liters oil plus the mineral oil flushing of 5 liters.

Any effect on engine performance? (switching back to mineral oil from synthetic)

[Mile2]

Not much, the only noticeable effect was that engine on Fully Synthetic is much quiet, mas malabnaw kasi yung fully synthetic kaya mas tahimik yung makina.

If you have the bucks why not go fully synthetic, pero mas madumi naman ang oil at the end of every 10K.

[IMm29]

I have a six month old car that has synthetic oil. I want to change to mineral oil because I assume its better to change oil every 5th kms rather than every 10t kms. Its quite cheaper too.

It confuses me because I heard one of the T*Y*T# service advisors say that once you have synthetic oil, you cant change back to mineral oil...

Is it true or a misconception? Or is it just heresays and no basis for such statements?

Does anyone tried switching from synth to mineral? Any difference in performance?


TIA!

Well, like what meledson said, "once you use synthetic, di ka na babalik sa mineral". But that's not because you can't, but maybe coz you won't want to, considering the performance benefits and assuming the price of synthetic is ok with you.

But for us mortals, switching to mineral from sythetic is ok. You can do it without harming your engine, for as long as you get mineral oil that meets the engine's requirements (i.e. specified viscosity, classification - SJ, SL or SM, diesel or gas).

Bear in mind though, that mineral oil won't perform as well as synthetic oil over the long haul. For instance, responsiveness with mineral oil might be good for the first 1000 kms, and not as good for the next 4000 kms, unlike synthetic which is supposed to be good till 5000 to 10000 kms.

You can switch directly from synthetic to mineral. Chances are your engine is still reaping the benefits of the synthetic oil so changing into mineral doesn't need "cleaning" or flushing. Switching the other way around though isn't also gonna be that problematic. The synthetic oil might just be dirtier, but then the filter is supposed to take care of that.

I've switched from synthetic to mineral to synthetic time and again and used different viscosities in the process on my 5 and 3 year old cars. And I don't baby them when I drive. So far, so good.

Go with the oil that works for you and your budget. Get synthetic if you can afford it, and change it as per the recommended casa interval as per the manual, if you can afford it. Otherwise, get mineral and change it as often as you can afford it.

[Howard Roark]

I recently switch back to mineral oil from fully synthetic and so far no bad effect.

I had my PMS at Toyota Makati and when I said I wanted to switch back to mineral oil, all the SA told me was they don't use chemical based flushing and will have to use mineral oil to flush the engine. Mine was a 2.0 VVTI engine that uses 6 liters oil plus the mineral oil flushing of 5 liters.

Do I really need to have the engine flushed? I read somewhere here in the forums that its not needed.. Mine has 9t kms, I might change my oil earlier than the scheduled pms, to address some problems on engine pinging...

[Howard Roark]

the problem you may encounter is your engine might not be able to cope with the degradation in lubrication. well probably, your engine needs some preparation by using flushing oil. pero having a new car, i'll go with the synthetic oil and follow the periodic change oil schedule.

Medyo mahal kasi ang synth oil... I am opting for mineral to cut costs and assure that my engine has new oil every 5k, rather than wait for the usual 10k for the synthetics. Comparatively, medyo mura pa rin kahit mas mataas ang labor charges...

Though its not environment friendly (mas maraming used oil ang natatapon, at di natin alam kung disposed properly)

[eyshmechanic]

yes imm29 is right, it's the viscosity of the oil that matters. when the engine temperature rises the viscosity of oil changes. sabi nila ang viscosity ng synthetic oil has no significant change in extreme heat, so madulas pa rin kahit mainit na mainit na ang makina unlike the mineral oil. kaya kung karerista ka and you are using mineral oil medyo hirap ang makina ng kotse mo. in additon, synthetic oil doesn't burn easily kaya matagal ang palitan.

[snowbound]

yes imm29 is right, it's the viscosity of the oil that matters. when the engine temperature rises the viscosity of oil changes. sabi nila ang viscosity ng synthetic oil has no significant change in extreme heat, so madulas pa rin kahit mainit na mainit na ang makina unlike the mineral oil. kaya kung karerista ka and you are using mineral oil medyo hirap ang makina ng kotse mo. in additon, synthetic oil doesn't burn easily kaya matagal ang palitan.

just for clarification, is it really true na ang viscosity ng synthetic oil has no significant change in extreme heat, madulas pa rin kahit mainit na mainit na ang makina unlike the mineral oil? this is the reason im hesitant to use synthetic oil. im using castrol crb 20-40W and would like to shift to petron rev-x but has lower viscosity at 5-30W. ok lang ba mag shift?

[KBR]

just for clarification, is it really true na ang viscosity ng synthetic oil has no significant change in extreme heat, madulas pa rin kahit mainit na mainit na ang makina unlike the mineral oil? this is the reason im hesitant to use synthetic oil. im using castrol crb 20-40W and would like to shift to petron rev-x but has lower viscosity at 5-30W. ok lang ba mag shift?

well I think that Synthetic Oil would switch to its higher viscosity when the engine is at its highest temperature. thats why there are multi-viscosity weights, for ex: 10w30,10w40, 20w50.. and so on. also, Synthetic Oil will react better in extreme heat and it stays "slick" (or madulas).. not unlike Mineral Oil, na pag mainit na ang temp.. specially on long periods of time, nagiging parang tubig na lang siya (like hindi madulas.. basa lang, parang tubig.).

so mas maganda pa rin ang Synthetic Oil, specially for hard working engines that always see's high operating temperatures and runs at higher RPM's. Synthetic Oil will stick better on engine rotating assemblies (main & rod bearings, piston rings, valvetrain components, etc..) kaya kung mapapansin niyo na mas kumakapit sa bakal (for example: Cylinder walls, bearings..) ang Synthetic Oil kumpara sa Mineral Oil.


also, I think you'd be better off using the Castrol 20w40. specially for hotter temperatures. also, going down to a 5w30 oil is really a bad idea (since 5w30 is much thinner.. and doesnt perform very well in extreme heat)

anywayz, in my honest opinion. I think youll be OK using EITHER Synthetic or Mineral oil. pag stock lang ang makina and hindi lagi nasa higher RPM range.. then stick to Mineral oil (but always change oil every 3K miles). vice versa naman din sa Synthetic oil.. although pwede naman din gamitin ang Synthetic oil sa mga stock engines. ang ma ge-gain lang by using Synthetic oil are: extended Oil Change intervals (tumatagal to almost 10K miles ang Synthetic Oil.. on normal engine operations) and of course, mas maganda ang performance and protection na mabibigay ng Synthetic Oil, lalo na sa mga performance engines (High Compression & Turbocharged)



aite, peace.

[rayban7g]

For more info: (the never ending link...)

http://www.carbibles.com/engineoil_bible.html

[KBR]

For more info: (the never ending link...)

http://www.carbibles.com/engineoil_bible.html

thats a very informative link my friend ('',)


aite, peace.

[meledson]

Regular drivers are not race drivers naman on the road. How do we define Etreme Heat when it comes to engines?

[KBR]

Regular drivers are not race drivers naman on the road. How do we define Etreme Heat when it comes to engines?

actually, extreme heat can be produced by hot weather (of course.. coz you add up the hot outside temperature to the under hood engine temps.. will equate to more extreme heat inside the engine bay).

also, long periods of Idling.. bumper to bumper / stop & go traffic will also cause extreme heat to the engine (and more wear on internal engine parts).


aite, peace.

[mazingerZ]

Sirs, curious lang po, what would happen if you are currently using fully synthetic oil, then merong ibang gumamit, nilagyan ng mineral oil? Say 10w30 synthetic oil nilagyan ng 20w50 mineral oil to top off. What will happen?

[meledson]

actually, extreme heat can be produced by hot weather (of course.. coz you add up the hot outside temperature to the under hood engine temps.. will equate to more extreme heat inside the engine bay).

also, long periods of Idling.. bumper to bumper / stop & go traffic will also cause extreme heat to the engine (and more wear on internal engine parts).


aite, peace.

Just asking..

Di ba dapat nakadesign ang makina na kahit stop and go and under hot weather, hindi dapat mag over heat? Kung nag over heat under these conditions, may problem ang cooling system. Tama ba?

Akala ko, extreme heat ay generated pag almost nasa red line ang makina. Sa dami ng gas na nasusunog, mataas ang heat generated.

[brynlops]

saken nung 1K synth then nung 5K, 10K, 15K mineral oil na lang.. ok naman..