Sovero1

Toyota 90915-20004

or

K&N HP-1002


I have a 93 GS300 with 159K miles.


Thanks

gs400998

Bananags have compared Lexus, Supra and Mobil 1 filters:

http://bananags.netfirms.com/techs/oil_filters/

Lexmexico

I use that K&N HP-1002 filter in my 99 RX. I was getting lousy flow with the Toyota filter at 8,000 feet up. Switched to the K&N, and car feels much smoother even when using Mobil 1 15W-50 or 5W-30 at sea level. Go with the K&N between the two. I have also heard good things about the Mobil 1 filter, but it is just not sold down here for me to test.

BananaGS

Lexmexico, you forgot to mention that you are in Mexico in this post hee hee

///MDex

I never took Physics in HS. How does elevation effect fluid dynamics?

PERRYinLA

Now now, Dex, don't grill LexMex on his high school Physics; he majored in Geography!

Lexmexico

Problem is, no one here took reading 101. People tell me why are you using 15W-50, that is not recommend at all for a Lexus. Duh, did you even notice where I live? I have to keep putting Mexico in my messages to avoid the certain ludicrous trolls who keep popping up.

///MDex

Why are you using 15W-50? Is that was Lexus recommends for drivers in Mexico? What necessitates the need for (substantially) heavier oil?

Lexmexico

Lexus does not exist in Mexico, but Toyota has been recommending drivers use the 15W-50 in Mexico City only due to high oil consumption. Air is very thin and the car works harder. In fact, I never see 5W-30 anywhere in a synthetic except for dino oil. I tried 5W and 10W and very heavy consumption. In fact, I have seen a warning on the new Sienna (in spanish) informing drivers in Mexico City only to use 15W-50 grade.

dmd85059

Oil filter is one of the most important part of the engine but oftentimes overlooked. I've done extensive searchings on the web to find the best filter for my GS300 and have concluded that Amsoil SDF filter is THE ONE.

HERE IS WHY (correct me if I'm wrong!):

Most filters sold out there advertise on "performance" (how well and how small the particles the filter can filter in one pass). Well, in this category, nothing beats the Purolator PureOne with the smallest pore size of 10 microns (Mobil1 smallest pore size is 16 microns and Amsoil is 17 microns. Particles above 20 microns in size are the ones that can cause significant damage). The smallest pore size reflects the smallest particle an oil filter can filter.

So, if we only judge by performance, Purolator PureOne should be the winner right? Wrong! There's another important aspect beside how well a filter can filter, THE FLOW-RATE. Just take a look at all the filters sold out there, none of them would advertise on how well the oil can flow through the filter. Why? Because in order to make a filter that can filter very small particles, they would have to sacrifice flow rate and they wouldn't want you to know that so they kind of ignore it. In terms of flow rate, Mobile1 flows almost twice as much oil as Purolator PureOne and Amsoil can flow almost 3 times more oil than PureOne.

WHY DO WE CARE ABOUT FLOW-RATE?

Well, built in your oil filters is something called the Pressure Relief Valve. This valve will open when your filter is completely plugged or when you floor your car and the oil flows through the filter cannot keep up with the demand of the engine.

So, I hope you can see why flow-rate is important by now. If you drive like a maniac (flooring your car most of the times) and use a filter with restrictive flow-rate such as PureOne or Fram TG series or even Mobil1, the Pressure Relief Valve would open most of the time letting all the dirty oil through. As a result, all the advertisings about oil filter performance become meaningless, YOU'RE RUNNING ON UNFILTERED OIL!

WHY AMSOIL SDF FILTER?

Amsoil SDF filter has the best combination of flow-rate and performance as well as capacity. STP S5 filter also has a very good combination of performance and flow-rate. Mobil1 perfomance is on par with these but has about half the flowrate of Amsoil filter.

Here are my preferences:
Amsoil SDF (17 microns / 13.1 fl-oz per min. on 30W oil)
STP S5 (18 microns / 11.8 fl-oz per min. on 30W oil)
Mobil1 (16 micons / 8.1 fl-oz per min. on 30W oil) --> I think this is a bit restrictive in terms of flow-rate.
Lexus genuine filter -- no known specs but looks pretty well built , probably >25 microns and decent flow-rate -- I've been using this until I switched to Amsoil filter.

I now run my car on XL-7500 10W-30 Amsoil and Amsoil SDF filter. Oil is changed every 6k miles and oil filter at every 3k miles. My GS has 50k miles now and still runs as smooth as silk and feels like new.

Reference:
http://www.OilFilterStudy.com

nthach

i'm not too fond of Hastings-made filters, Amsoil/Hastings/Casite are all Hastings offspring. I'm running a Fleetguard on my car now.

Lexusfreak

I use Mobil 1 m1-102 & K & N HP1002, never a problem.

saber

The state of the art Toyota oil filter for the GS300 engine is the Denso 90915-YZZD1 filter. It costs about $5.00 -$5.50 from discount Toyota dealers. 8 of the 9 Toyota / Lexus owners I have become acquainted with that drove 400,000 miles or more without an engine overhaul used Toyota oil and air filters.

Lexusfreak

On a properly maintained car, the engine & transmission should last the life of the car anyways! without ever needing an overhaul. The body should "give out" before the engine or tranny.