1995 Lexus LS400 filled with 10W-40...

[gregoron]

...should I be worried?

I visited my dad in Manila, Philippines and found out that his Lexus with 56k miles was filled with 10W-40 Shell oil by his home service mechanic. This is the most popular oil in Manila, which is sold at most service stations.

I promptly showed my dad the manual which states that 5w30 or 10w30 oil is recommended. Would there be any adverse effects to the engine given that it had this oil in its sump for more than a year now? My dad probably only drives it less than 4000 miles per year.

I told him already to have the oil changed to 5w30. Would 10w30 be fine since it's cheaper and avg temperature year round is around 87 deg F?

 

[Nebroch]

How high is the average temperature in Manila? In elevated temperatures 10W-40 could protect the engine better than xW-30. What is the actual type/make of the oil he uses?

 

[Oil Changer]

Originally Posted By: gregoron
...should I be worried?

...This is the most popular oil in Manila, which is sold at most service stations.

...had this oil in its sump for more than a year now?


No, you should not worry.

 

[tinmanSC]

Actually 10w-40 is correct for that temperature and says so in the factory service manual and probably says so in your owner's manual. You said that yours says 5w30 is recommended, do you have a chart like mine where it gives acceptable oil ranges? Mine says 10w30 or 10w-40 is appropriate for all temp ranges above zero degrees Fahrenheit, with 15w40 acceptable for all temp ranges above 10 degrees fahrenheit. 10w-40 will never cause a problem in a Lexus LS400's 1UZ-FE engine in that climate. Just leave it. In fact, if he were to use that oil from this time on, I doubt the engine would notice in any measurable way.

 

[gregoron]

TinmamSC,

His manual recommends 10w30 above zero degrees Celsius. It doesn't show 10W-40 anywhere in the manual.

He drives mostly short distances so engine might not get up to temperature.

Thanks, I guess I'm worrying too much.

 

[19jacobob93]

I would personally use either 10w30 or 10w40 in this engine
They are generally a very good engine so I wouldn't worry a single bit!

 

[Falcon_LS]

No worries running 10W-40.

 

[Nebroch]

http://www.youtube.com/watch?v=3Y-Gdz6N-dU#t=4m20s

It's a masterpiece!

 

[charbaby]

As stated on TOP GEAR, the LS400 is "petrofyingly good!"

 

[charbaby]

"Petrifyingly Good!" Is what the reviewer said but, is this even a word? I did spell it incorrectly, if it is indeed used correctly.

 

[fdcg27]

Viscosity varies with temperature.
A 10W-40 at Manilla morning temperatures is thinner than a 5w30 at Ohio winter morning temperatures.
Nothing to worry about at all.

 

[AKhan87]

Originally Posted By: Nebroch
http://www.youtube.com/watch?v=3Y-Gdz6N-dU#t=4m20s

It's a masterpiece!

WOW, whatever excuse or [censored] people wanna come up with...to rebuttal...but there is a reason why toyota is #1 in sales

 

[kozanoglu]

Even 10W-60 would work in Phillipines. Do not use 5w30 at all.

 

[kschachn]

Lol right, don't use an oil that is specified for the vehicle.

Originally Posted By: kozanoglu
Even 10W-60 would work in Philippines. Do not use 5w30 at all.

 

[kozanoglu]

LOL do not take into account 'details' like geography and manufacturers paying attention to it.

 

[Boss302fan]

Leave it...

 

[gregoron]

Thanks for the input everyone. Will suggest keeping the 10w-40 in. A 5 liter jug of 5W-40 costs $55 there.

 

[Merkava_4]

Do they have 10w30 available in Manilla? Just curious.

 

[gregoron]

* I meant 5w30.

 

[gregoron]

Merkava,

I am not sure. I think they would have it in auto parts stores. The 5w30's that they do have are available in gas stations in bottles and jugs. They are synthetic hence the higher cost.