5w30 HM vs 10w40 synthetic

[MaximaGuy]

My highlander has 160K and there is a loss of 0.75Q over 7.5K OCI and it has had synthetic all throughout.
There is absolutely no leaks whatsoever from any part of the engine.

I am thinking of moving over to 5w30HM to reduce oil loss or 10W40.

Pl. chime in your thoughts

 

[901Memphis]

That's oil consumption is very good for the mileage and is typical from normal engine wear. I would try the Mobil 1 high mileage 5w30 first and see if it changes anything but nothing abnormal is going on.

 

[SatinSilver]

Has the pcv valve been replaced with an oem version lately?

 

[zeng]

10W40 (commonly in synblend) .... in my perspective.

 

[MaximaGuy]

Originally Posted By: SatinSilver
Has the pcv valve been replaced with an oem version lately?


I never ever had to replace the PCV, I remove it at every 60K, rinse it nicely with brake cleaner and put it back.

Though since you mentioned I don't remember the last time I did this, I need to go check my log book

 

[MaximaGuy]

I may settle down with M1 5w30 HM and stick with it till EOL on the vehicle, my wife is insisting on a new one and my head is rolling at the prices of these luxury SUVs.

She is bent on dying having driven a MB, and wants a ML350. I am scared about maintaining a over engineered Euro vehicle (water cooled alternators etc, all garbage) and giving her all the good things about Japanese vehicles. I want her to settle down with an RX or MDX, well we may finally go with a ML

 

[mclasser]

That consumption is nothing. Upgrade to a HM oil if you wish.

 

[Adair727]

.75 quarts over 7,500 miles, I say run 5w30 high mileage. I have switched from 10w30 to 10w40 high mileage in my CRX, but it uses around 1.5 quarts over 5,000 miles.

 

[bvance554]

Thats not oil loss. Thats normal. Idk what you expect to gain by changing anything.

 

[Dallas69]

You're using less than a qt in 7500 miles.
This is nothing to worry about.
I would not change anything.
You're getting a new overpriced SUV anyway it seems.

 

[smithph]

Originally Posted By: MaximaGuy
I may settle down with M1 5w30 HM and stick with it till EOL


M1 5w30 HM (cSt 12.1) should work well as a nice thick 30. I have had good luck with Valvoline 5w-40 (cSt 13.1) in a Toyota 3.5, seems to deaden the noise on the old sewing machine a bit.