Thread: What Motor oil do you use in your grand prix?

I switched to synthetic for the first time 2 months ago. I put Castrol Edge full synthetic 5w-30 (it was on sale and had $7 mail in rebate) with K&N Filter (also on sale). I likely wont be using it again because of the price, and i believe its too light for my engine (I will be sticking to 10w-30), but its been great for now, as my engine it beat on pretty hard going on about 6-8 short trips per day (<3 miles/trip).

Overall I recommend using 10w-30 full synthetic (any) with a K&N filter. It doesn't matter on the mileage, as to if you can switch to synthetic or not.

conventional, its ****ing oil.

Like like like like like like

Originally Posted by addzradd

Supertech, from Walmart it's $11.25 for a 5 qrt jug

Awesome.

Originally Posted by addzradd

I stocked up on old style PF-52 filters.

...less awesome. Unless you already have a stock of the old stuff (which you do, but nobody else does), Delco filters are crappity-crap. So, always remember to buy... pretty much anything else.

Crude oil.

**** your couch.

I use AMSoil 0w30 with a K&N wrench off in the Racecar

Daily gets whatever is on sale.

I use Castrol Edge Titanium, 5w30... and I know some people will call bs on this but there really is a difference in smoothness running and acceleration between conventional and Edge... and I just feel like, if Im gunna be running the car to 6k rpm here and there... and 3.5-4k pretty often, I definitely want that synthetic in there. I just feel better about my engine as a whole with a better oil in it, considering all the forces the bearings and valve train and all the moving parts endure in a revving engine.

I read quite a few people comment on K&N Filters and while the nut on the end really makes it easy to get it off the car, Im not a big fan of K&N filters. I say this because I used to use K&N every oil change, until one month Advance had a special with the Edge I use with a Bosch Distance Plus filter so I got it. I never took notice before but my oil stayed clean and gold in color all the way through the oil change with the Bosch, while by 1-1.5k on the oil change, the oil is turning dirty and dark with the K&N. So I've been using Bosch for awhile now and consistently seeing relatively good looking oil at change time, last change there was a special with K&N so I thought what the hell and got it... and lo and behold, my oil was dark and dirty before I had 1k on the new oil.

So yeah, Im about the Bosch Distance Plus, now.

the cheapest 10W30 they have

the 99 has 196K

the 97 has 230K on the body and 155K on the engine

full synthetic would just clean all the dirt out and make it leak


the Lebaron and merc use the cheapest 5w30

the merc has 210k

the lebaron has 134k

Originally Posted by Hippo Machine

I switched to synthetic for the first time 2 months ago. I put Castrol Edge full synthetic 5w-30 (it was on sale and had $7 mail in rebate) with K&N Filter (also on sale). I likely wont be using it again because of the price, and i believe its too light for my engine (I will be sticking to 10w-30), but its been great for now, as my engine it beat on pretty hard going on about 6-8 short trips per day (>3 miles/trip).

Overall I recommend using 10w-30 full synthetic (any) with a K&N filter. It doesn't matter on the mileage, as to if you can switch to synthetic or not.

Again with misinformation. Yes the mileage does matter. Synthetic will get into areas that conventional oil has deposited and swelled seals over the year basically flushing it out causing massive leaks.

Originally Posted by OH4CompG

Don't spend extra on the K&N filter, save a couple bucks and get the Mobil 1. They're made by the same company, K&N is usually 2-3 dollars more. The mobil 1 filter number is M1-201 for the bigger filter.

Save even more money and get a Purolator which is even better than the K&N and Mobil 1.

The only pressure in this thread is peer pressure.

Synthetic Mobil1 or Amsoil. Depending on how fast i need it.

10-40w Valvoline Max Life
About to roll over 200K

When I had a built up motor, I used syn. Now that I'm just driving a car and I know it's high mileage and was maintenance abused for years, I'm not fussy. Although I do maintain a 3,000 mile change interval.

Syn can take abuse and longer changes, but you'll still put deposits in the valleys and motor.

I'd stick to a good interval and not be worried.