Oil Viscosity not in the manual ...

[Dezaremos]

If your car's owner's manual say the recommended viscosity is

10w30 or 10w40 ..

What happens if you use 5w30 or 5w40 ??

Is 5w30 too thin for a 20 yr old car ?? Corolla GLi 4afe ..

Currently using Mobil 10w40 ... Last year was using vTec LEV 10w30 ..

[StockEngine]

Motor Oil 11 - Chapter One - Operating Temperatures and Viscosity - Bob is the Oil Guy

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[oj88]

You should be ok with a 5W or 10W40 oil.

[StockEngine]

You should be ok with a 5W or 10W40 oil.

and even with a 0w40

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[Dezaremos]

and even with a 0w40

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I wanted to try a 5w30 kasi .. Will it be ok with my engine ??

[WallyWest]

I wanted to try a 5w30 kasi .. Will it be ok with my engine ??

If 10w30 is in your owner's manual then 5w30 or 0w30 is also ok. What's important is the "30".

[StockEngine]

I wanted to try a 5w30 kasi .. Will it be ok with my engine ??

very similar to the 10w30 honda oil you used. don't worry much...

[Lew_Alcindor]

If I were you, I'd use 40 instead of 30. The number beside "W" doesnt matter in our country, AFAIK.

[oj88]

and even with a 0w40

Personally... and it's just my opinion... a 20 y/o vehicle will probably be better off with a 5W-xx or 10W-xx. Reason being, the engine might actually benefit from a relatively thicker oil at cold start because part tolerances have presumably loosened up enough that an 0W oil may no longer provide enough initial protection.

Note also that motor oil takes a lot more time to warm up and reach the target viscosity. By comparison, the coolant temperature warms up significantly faster thanks to the thermostat valve, which can reach operating temp in about 5 minutes. Motor oil, however, could take anywhere around 15-20 minutes to reach normal operating temp. In other words, the oil might stay in the lower end of the viscosity range far longer than necessary.

Anyway, I'm just splitting hairs.

[StockEngine]

Personally... and it's just my opinion... a 20 y/o vehicle will probably be better off with a 5W-xx or 10W-xx. Reason being, the engine might actually benefit from a relatively thicker oil at cold start because part tolerances have presumably loosened up enough that an 0W oil may no longer provide enough initial protection.

Note also that motor oil takes a lot more time to warm up and reach the target viscosity. By comparison, the coolant temperature warms up significantly faster thanks to the thermostat valve, which can reach operating temp in about 5 minutes. Motor oil, however, could take anywhere around 15-20 minutes to reach normal operating temp. In other words, the oil might stay in the lower end of the viscosity range far longer than necessary.

Anyway, I'm just splitting hairs.

hardly any difference at 40C for 5w30 and 0w40, 72.8 and 75 cSt respectively

Mobil 1 New Life™ 0W-40

Mobil 1™ ESP Formula 5W-30

[StockEngine]

helix ultra is thick if you want...

havoline ss is api sn... its not long life...

mobil1 is long life oil also


why 5w30?

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[Dezaremos]

helix ultra is thick if you want...

havoline ss is api sn... its not long life...

mobil1 is long life oil also


why 5w30?

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why is the helix ultra thick ??

I'm thinking of helix hx7 5w30 ss to compare with havoline ss ..

why is havoline not long life ??

the reason why I want to try 5w30 is because my usage is frequent stop & go .. turn on the car in the morning, go to the office and turn off the car .. during lunch time, turn on the car, drive the car after a minute of starting it ... most of the time after I ran the car slowly after 30sec to 1min of cold start and I want the oil to circulate faster ..

I just want to make sure that i wont damage my 4afe engine by running 5w30 on it .. some say that an oil too thin will not circulate properly on some engine ...

[kisshmet]

why is the helix ultra thick ??

I'm thinking of helix hx7 5w30 ss to compare with havoline ss ..

why is havoline not long life ??

the reason why I want to try 5w30 is because my usage is frequent stop & go .. turn on the car in the morning, go to the office and turn off the car .. during lunch time, turn on the car, drive the car after a minute of starting it ... most of the time after I ran the car slowly after 30sec to 1min of cold start and I want the oil to circulate faster ..

I just want to make sure that i wont damage my 4afe engine by running 5w30 on it .. some say that an oil too thin will not circulate properly on some engine ...

Thick oil sticks more than thin oil thats why thick oil will more likely be harder to disperse

Subukan mong maghalo ng halaya mangangalay ka agad kaysa maghalo ng arnibal

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[StockEngine]

Thick oil sticks more than thin oil thats why thick oil will more likely be harder to disperse

Subukan mong maghalo ng halaya mangangalay ka agad kaysa maghalo ng arnibal

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the reason owners manuals include 30 and 40 weights is that they will work.



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[stayhungry]

5w30s in general are thinner oils than 10w40s and should save you a bit of fuel due to the lower friction in the engine. The better fuel economy is of course either something car makers try to shoot for with every improvement in the car OR something government should be imposing on car makers over time.

And yes I've seen cars on 10w30 in cali arizona and florida running all year no problem.

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[Jomar_05]

Hi newbie lng po.. ok lng po ba na from fully synthetic oil to synthetic based oil? sinubukan ko po yung ng shell helix high mileage oil 10w-40 nila since nasa 190k na odo.

[Ry_Tower]

Hi newbie lng po.. ok lng po ba na from fully synthetic oil to synthetic based oil? sinubukan ko po yung ng shell helix high mileage oil 10w-40 nila since nasa 190k na odo.

200K plus na odometer paj ko. Yan na din gamit ko. High mileage ng Shell. 1 year or 10,000kms bago ako change oil. Ok naman so far.

[innova2013]

200K plus na odometer paj ko. Yan na din gamit ko. High mileage ng Shell. 1 year or 10,000kms bago ako change oil. Ok naman so far.

bro, kamusta naman fuel consumption?

balak ko din mag high mileage ng shell kaso 15W-50 ang nakikita kong viscosity. kapag 40-weight oil kasi gamit ko, nag le leak after 2k kms sa crankshaft oil seal (sakit na ng makina ko, pero kapag bagong change oil, walang leak)

currently using Zic X7 10W-40, may pawis na ng konti sa oil seal, currently at 1k kms on this oil.

386k kms mileage.

[Ry_Tower]

bro, kamusta naman fuel consumption?

balak ko din mag high mileage ng shell kaso 15W-50 ang nakikita kong viscosity. kapag 40-weight oil kasi gamit ko, nag le leak after 2k kms sa crankshaft oil seal (sakit na ng makina ko, pero kapag bagong change oil, walang leak)

currently using Zic X7 10W-40, may pawis na ng konti sa oil seal, currently at 1k kms on this oil.

386k kms mileage.

Nasa 6km/ltr sa city tapos 9-10km/ltr if highway. 15w50 gamit ko kasi nga luma na sasakyan. Yan talaga ideal.

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[StockEngine]

no issue bro. 195k next change oil

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