garydinh

Hey guys i recently bought a 06 is350 and i was curious what the best oil to use for the car is. thanks for helping out.

bbaugher47

I just switched to mobil 1 synthetic. Im at 45,000 miles in my 2007.

Lexustom

Exactly what I use in my '06 350. Been using it since new. 88,000 trouble free miles.

flowrider

iTrader: (9)

https://www.clublexus.com/forums/is-...-on-is350.html

https://www.clublexus.com/forums/is-...questions.html

Lou

DaveGS4

iTrader: (2)

This question is a bit like asking "what's the best religion?"... important part of the equation is to keep up the schedule.

Also some school of thought not to switch from non-synthetic to synthetic on higher mileage cars

garydinh

alright cool thanks guys

mandyfig

Whatever is on sale 5W30 Full Synthetic, I go for it. They are current going for $22/5 Quarts over at Wally world, name brands included.

I do use a no name brand, full synthetic, same weight 5W30 for the topping off in between 6K oil changes. I usually add at least 0.5 to 1 Quart within the 6K miles. Checking oil level at least once per 2 weeks.

Aspect

I always use 5W30 Castrol Syntec Full Synthetic. I think I remember later IS models started switching to 0W30 but there's a whole thread about that

BlckGhst

Cheapest stuff with the correct weight

Gville350

iTrader: (10)

Been using Mobil 1 full syn since 31k miles and with 10k mile oil change intervals. No signs of burning oil or oil consumption. I'll continue with the 10k intervals with this same oil until and see any problems. Probably will be a couple more years until then.

Jleesd

iTrader: (1)

I agree with kitabel, but for the op's sake I usually use 5W30 full synthetic Mobil 1

UnderCover

I'm doing the same, Mobil 1 full synthetic and 10k intervals.. Still thinking about replacing filter every 5k but I'll have to look into that.

Mrfix

A group 4 Synthetic. You also want to use a Mobile 1 filter M1C 256 filter since it provides excellent filtration. Then get an analysis done at BlackStone Labs.

http://www.blackstone-labs.com/free-test-kits.php

It will tell you how your oil of choice is performing.

SQLnovice

Are you using OEM filter with the 10k interval for oil change or another oil filter?

Gville350

iTrader: (10)

Just the OEM paper element filter. I waited on one oil change to around 12k miles, and there was no difference in physical appearance between it and the new one.