toyota 3.4 v6 semi synth

[moontan]

im sure this has been asked,but... anyone recommend a synthetic blend 5w30 that can handle the 5k intervals in this motor? the castrol gtx 5w30 conventional ive been using seems to be done at 3k.i want to stay within the 5k change for warranty ,or is it worth it to go full synthetic?

 

[Bryanccfshr]

Motorcraft 5w30 with a dose of LC is holding up well for me. it will go 5k or 6 months wichever comes first.

 

[Marlin]

Mobil has their Drive Clean Plus Semi-Syn. 5W30 is for cars/trucks with less then 75K and their 10W30 is for 75K+

 

[1maniac]

quote:

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the castrol gtx 5w30 conventional ive been using seems to be done at 3k

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How did you determine that?

 

[TooManyWheels]

I have been running Schaeffers 10w30 blend to 6500 miles in my Toyota 3.4, with plenty of TBN left to go even longer. However, all of these results have been with the addition of the A-RX maintenance dose, so I'm not sure what the oil would do without additives.

I am currently waiting on lab results from a 6500 mile Schaeffer's interval using my first experiment with Lube Control instead of A-RX, and can forward the results if you are interested.

 

[Grossomotto]

Castrol GTX should go 5K in this engine, unless you fall into the severe duty category.

Why go with a blend? If you have the money just go with GC 0W30 or Mobil 1 5W30, which will go 5K no problem. You could go up to 10K with a used oil analysis.

 

[T-Stick]

I ran 5w30 Castrol GTX to 7300 miles in my 3.4 Tacoma just to see what the UOA would look like. The driving was on mostly country roads. I had excellent wear numbers and a TBN from Blackstone of around 1.2 . If your engine is sound the 5K is no sweat with GTX.

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=3;t=001528

[ December 04, 2004, 08:06 PM: Message edited by: T-Stick ]

 

[moontan]

glad to hear 5k w/gtx. my driving is mainly stop n go. work is only 8 min away.only drive farther on weekends.truck only has 11k miles on it.i just have to get over the "3k then change" brain washing.

 

[T-Stick]

If you have a lot of stop and go driving and short trips, you may want to run an analysis at 5K to see how this OCI will work for you.

 

[FL-400S]

Theres a used oil analysis of 7000+ miles on GTX for a 3.4L. I am going to MC 5w30 for $1.42 a quart once I run out of dino. I normally wouldnt pay for blend, but for $1.42 a quart its a steal. I end up doing 6 month changes since I drive several cars and only put 2000-4000 miles on them in 6 months.

http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=001528#000020