I'm using AMSOIL 10W-30

 

i just recently changed my oil, went to autozone and didnt had mobil1 10-40 so I bought a synthehtic Castrol 10-40. i think i should have used 5-30. would it be much of a difference. i have 57k now. ?

 

Mobile 1 synthetic extended by the jugs

 

Only use what the engine requires.

 

10w-40 is a bit too thick. Unless you're living in death valley where temperature is darn hot, use 5w-30

 

Amsoil 5W-30 for engine and Mobil 1 75W-90 for 6SPD tranny.

 

Just finished changing the oil in my new(used) 2006 ES330, 5 quarts of Redline 5w20 and 5 ounces of SPOT(synpower oil treatment)

 

Mobil1 50/50 mix of 10W30, 20W50....

changed every 5k miles (it's easier to keep track when you do it on 5k intervals)

 

i been through it all i tryed all oil brands as of top kind and used my car at my brother in law shop with special machine testing the car giving and performance nothing was close then GTX caostrol synetic blend

 

1991 lexus ls 400 got 167,000 miles i did what u think u do to know what best for ur car for oil GTX SYNETIC BLEND THE NEW ONE U FEEL THE POWER IN HOW IT JUST TAKES OFF

 

Mobil 1. Changed to the synthetic about 2 months ago to prepare for the cold temps. With the oil and my remote start. I practically have no worries about premature engine wear when I drive off in cold weather.

 

I use Royal Pruple every 3-4k in my 93 sc300 with 222K on the clock.

 

Currently Mobil 1 5w-20, 0w-20 for RX300's 1mz-fe.
However, Mobil 1 is rumored to offset the increase in group IV base oil by going with the cheaper Group III base stock since late 2006. See thread in BITOG that has some hard evident.
With a demanding 1mz-fe engine, I need additional oxidation protection. German Castrol 0w30, Group IV PAO based oil, will be going into my engine in the future.
If GC go with the cheap route like Mobil and Pennzoil did, Pennzoil Platinum (group III) + Auto-RX will get the nod.

 

mobil 1 synthetic 5W30
every 6k

i can hardly find Castrol Syntec 0W30 german full synthetic here in canada now
so im staying with mobil 1 synthetic to be safe


sry but could u give me a quick low down on what the differences are btwn group IV and group III oil and how this would affect 2JZ-FE?
thank you

 

A quick bit of research on Mobil 1's site will show you that it depends on which weight and type of oil you are using that determines if it's III or IV...

when I get to work later I'll post a link for it...