Thin to thick oil converts?

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I'm thinking of switching over to 30w oil in all my fam's vehicles except daughter's Lexus Hybrid.

Been running 0w-20 in wife's Sienna (no issues..yet), 5w-20 in my DI Lexus and son's Avalanche.

Sienna is well over 150k
My Lexus is approaching 130k
Kid's cars are around 90k

Now that gas $ have settled, I'm less concerned about that and more about cleanliness of engine and long-term reliability.
I'd like to hear your stories of your switch.
 
Originally Posted By: kschachn
We needed another thread today on the thick-vs-thin debate?


There is a one per day quota, sometimes we like to be above average.

FWIW My Mustang takes 5W50 and my mom's Ecoboost Fusion calls for 5W30 but gets 0W40.
 
Just switch to sae 30/40 oil
thumbsup2.gif


Leave sae20 oily water for.....
 
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Originally Posted By: Kamele0N
Just switch to sae 30/40 oil
thumbsup2.gif


Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?
 
20-30 down south is nothing. To be honest I don't think it will make any difference. That being said your vehicles seem to be doing fine with thinner oil. Why change?
 
5w20 should be "cleaner running" than a 5w30.

How bout you just substitute a qt of 5w40 instaed of going "all In".

My Rogue engine likes it as thin as it will go just before it starts mechanical clattering. This is about 1 qt of 5w20 into 4 qts of 10w30.
 
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I'm not in the thick or thin oil camp, it's a ridiculous debate.
I just use what i deem convenient for my cars.
And yes, that means that i run 20W-50 Dino in both of my cars, one because it specs 20W-50 and the other because it burns oil and it's a beater.
 
Originally Posted By: Nickdfresh
Originally Posted By: Kamele0N
Just switch to sae 30/40 oil
thumbsup2.gif


Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?


In EU we leave/reserve that oily water for auxiliary vehicles.... A.k.a hybrids...
smile.gif
 
My take on thin versus thick oil debate : Hyundai Kia state 5W20 is preferred but also endorse 5W30 and 10W30 as ambiant temp conditions dictate or when towing , driving up hills " . That tells me that 5W20 is marginal in Kia / Hyundai engines except for benign conditions (i.e. a CAFE play ) therefore I prefer a 5W30 or 10W30 synthetic .
 
Switched from 0w20 / 5w20 to 10w30 of low NoACK synthetic (PU at the moment) to reduce intake valve deposit and change it at 5k miles. I remember reading a study online from a Korean university / research org / manufacturer that their testing sees that group 4 base oil and reduced OCI help, as well as high engine load to burn it off the intake valve.

Prius is staying with 0w20 due to stop start engine, but will use M1EP at 10k miles OCI like The Critics does, to reduce probability of ring deposit related oil burn common on Prius.

Not really thin to thick but do have a reason for switch.
 
Last edited:
Originally Posted By: Kamele0N
Originally Posted By: Nickdfresh
Originally Posted By: Kamele0N
Just switch to sae 30/40 oil
thumbsup2.gif


Leave sae20 oily water for.....


...vehicles well in excess of 150,000 miles?


In EU we leave/reserve that oily water for auxiliary vehicles.... A.k.a hybrids...
smile.gif



Because you lazy socialists never change your oil...
wink.gif
grin.gif
 
It's pretty normal to go a bit thicker as a vehicle ages. But I just wonder about people here that seem to pop aspirin in case they might get a headache later...
smile.gif
 
Originally Posted By: dblshock
use the head, go thick early, save the need to do so later.


Yeah, only 150K and doesn't burn oil! Whew, that was close! I mean, why save a few hundred $ on gas?

If I did anything here, it's maybe going to a high mileage syn 0/5W-20...
 
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