Pennzoil platinum 5W30 2008 Toyota Sienna 230,000 miles

[GYA]

Here’s an update on the Sienna. Switched oil to 5W30 Walmart Supertech synthetic. The oil was in for 8 months and most commutes were daily, less than one mile total distance. It saw a few longer distance trips of 600 miles. A fair amount of idle time.

 

[AKhan87]

Thanks for the update

 

[PWMDMD]

Low viscosity, high fuel, and a depressed flashpoint...injector issue?

 

[Danno]

Low viscosity, high fuel, and a depressed flashpoint...injector issue?

Many short trips with engine not fully warm would be my thinking on the cause.

 

[dnewton3]

This particular engine is seeing very short trips most of the time; fuel and wear rates will be elevated. Plus this engine series wears a bit more than others. The Cu elevation is what is perplexing. I personally don't think you're out of the woods yet.

But, because you basically bought it as a DD beater (low investment = low expectations) I'd just drive the wheels off it. Do the UOAs if you simply enjoy them. If you're into experiments, consider trying a dino oil 5w-30 and see what changes, if any, may happen. Can't hurt at this point!

 

[GYA]

This particular engine is seeing very short trips most of the time; fuel and wear rates will be elevated. Plus this engine series wears a bit more than others. The Cu elevation is what is perplexing. I personally don't think you're out of the woods yet.

But, because you basically bought it as a DD beater (low investment = low expectations) I'd just drive the wheels off it. Do the UOAs if you simply enjoy them. If you're into experiments, consider trying a dino oil 5w-30 and see what changes, if any, may happen. Can't hurt at this point!

The UOA’s is a hobby with this vehicle. I’m interested to see how long I can drive it. I’m not too overly concerned about the CU until I see a trend. The motor was down about 1 quart at change/sample time. I didn’t replenish it. The oil sample came after a 600 mile trip. I’m sure the fuel % was higher before the trip which added to the wear.

 

[GYA]

Many short trips with engine not fully warm would be my thinking on the cause.

Very true. During winter the motor wouldn’t get above 120- 130 degrees traveling to and from work. Fairly severe duty.

 

[Kuato]

Lots of idle time, a lot of short trips, fuel dilution, towing, and winter in a 230k mile engine. Both your reports look reasonable to me. Might even try a 40 grade and see how it does.

 

[kschachn]

Lots of idle time, a lot of short trips, fuel dilution, towing, and winter in a 230k mile engine. Both your reports look reasonable to me. Might even try a 40 grade and see how it does.

Yep.

 

[Silver]

Switch to a "conventional" 30 grade for annual OCI's the iron will trend down.

Why do you say this?

 

[PandaBear]

Short trips, the only solution is to change more frequently regardless of synthetic or conventional.

 

[Greasymechtech]

Go thicker. Either run a high hths 30 grade oil or a 0w40

 

[Brons2]

Dual rated 10w30 diesel oil, the zddp levels on the latest ones are not much above SP oils.

 

[4WD]

Why do you say this?

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