Recent content by heffergm

I should also mention (and sorry for the multiple followups, but I can't for the life of me see how to edit a post here) that I haven't used any fuel additives. The engine does get worked reasonably hard however, and has seen the rev limiter half a dozen times.

The 8/10/06 numbers, by the way, was the first oil change at 4500 miles.

I'm curious what those in the know think about this, notably the increased lead. TIA

Thanks. Yeah, Lexus specs a Toyota synthetic 75w85 GL5 for the Lexus IS350 diff.

Guys, Was hoping someone might have this information: M1 75w90 has a cst @ 100ºC of 15.2. What I'm trying to figure out is if that's on the low range of the scale for a 90w or not. I ask because my car is spec'd for a 75w85 GL5, which is virtually impossible to get ahold of (and I have my...

PDF can be had here: Lexus Oil Analysis This is from another IS350 owner, done on the factory fill after ~5000 miles. Comments?

Is anyone aware of a commercially available synthetic 75w85 GL5? This is the oil spec'd for the diffential in my Lexus (aka Toyota). If not, does anyone have any idea if Lexus/Toyota dealers make the standard 75/85 available to customers?

Don't worry about the consumption. A quart in 5000 miles is hardly worrisome. I ate about that in my WRX while running 5w30. It's dropped to half that with 10w30. But then, I run the **** out of mine as well