Engine oil?

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Engine oil?

Postby smog7 » Wed Oct 18, 2006 8:21 pm

Just wondering but when you switch oils, do you have to get new gaskets? also which oil should i be running in my car,.... 141xxx miles completely stock.
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Postby db » Wed Oct 18, 2006 9:14 pm

New gaskets? No. However, if you put in synthetic oil in a high mileage car, you might need new gaskets if the old ones don't properly seal.

Run what you want.

I recommend 10w30 Mobil 1 (synthetic). Use 5w30 when its freezing out.
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Postby gt4tified » Thu Oct 19, 2006 12:17 pm

I'd recommed (to each his own) Castrol syntec 10W50.
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Postby Gary ST165 » Thu Oct 19, 2006 1:28 pm

use ester based fully synthetic oil.

the important word to look for is "ester" on the packaging. ignore catchphrases like "synthetic base" and "race formula" because its pure marketing b*ll*cks (to put it mildly)

i would only ever use millers CWS 10w-50 and silkolene pro S 10w-50 oils for UK climate. They are ester based and can handle the severe punishment oils get in a turbo charged engine. the 3sgte gets hot + the turbo glows red/orange hot under normal use.


If you cannot afford to protect your engine by investing in a fully synth oil, then change your oil more frequently than you think you need to....


P.S the 1st mod for our cars: invest in an oil filter relocation kit, thermostat and aftermarket engine oil cooler.... you have been warned :doh:
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Postby smog7 » Thu Oct 19, 2006 4:17 pm

can all these parts be simply ordered?
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Postby Gary ST165 » Thu Oct 19, 2006 5:16 pm

something similar to this: ebay oil filter relocation kit + cooler

once you understand the parts breakdown, i reckon you could source your own components for a lot less.
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Postby smog7 » Thu Oct 19, 2006 5:46 pm

why do you recommend those being the first mods?
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Postby toayoztan » Thu Oct 19, 2006 6:08 pm

That kit (and other kits out there), how much do they drop the oil psi (if they drop the oil pressure at all)?

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Postby Mafix » Thu Oct 19, 2006 7:19 pm

those shouldn't drop oil pressure at all. that is regulateed by the pump. although they do add to the total amout of oil in your car.
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Postby ___Scott___ » Thu Oct 19, 2006 8:15 pm

The oil filter is downstream from the pump. The filter could present a huge restriction and the pump wouldn't know it and happily bleed off excess pressure. Meanwhile the engine could be starving for oil.

I'm not saying that relocating the filter is bad, but I think it's a good idea to do your homework on the kits' reputation before you buy.

I vaguely remember reading negative comments about those cheap eBay relocation kits, but don't trust my fuzzy memory.
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Postby Gary ST165 » Thu Oct 19, 2006 10:50 pm

alltrac7 wrote:why do you recommend those being the first mods?


the 3sgte gets hot + the turbo glows red/orange hot under normal use.


i believe it is important to safeguard your initial investment. The bearings and pistons do wear eventually. More so when running hot.

On the 165 and 185 the oil filter sits very close to major heat sources (especially if de-catted) and cooks further :twisted:

Oil, be it Fully synthetic or other, is much more effective prolonging engine life at operating temperatures of 80+ celcius.
Engine oil temperatures of 100>110+ celcius have been reported on stock set up ::cry:

Every single 3sgte / cylinderhead i have seen stripped down, showed signs of cooking the oil.
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Postby muneo » Tue Oct 24, 2006 6:40 pm

Use 5w30 when its freezing out.


HAHA. He's in southern California. Dont ever use 5w-30 in this motor with that many miles in CA (unless you live in the Tahoe or Mammoth or something during the winter. It'll drink all 4 quarts in about 2500 miles
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Postby db » Tue Oct 24, 2006 8:14 pm

muneo wrote:
Use 5w30 when its freezing out.


HAHA. He's in southern California. Dont ever use 5w-30 in this motor with that many miles in CA (unless you live in the Tahoe or Mammoth or something during the winter. It'll drink all 4 quarts in about 2500 miles


Hey, I have to make sure all bases are covered. However, 5w30 shouldn't be consumed any faster than 10w30 would. I used 5w30 up in North Dakota, when the temps dropped below 32F and stayed there for months. Never had an issue.
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Postby muneo » Wed Oct 25, 2006 5:14 pm

You mean, temps go below 32 degrees? Sorry, born and raised in LA, I've never experience such a thing :P

I wasnt disagreeing with you about the cold temps/5w-30 part, I was just saying that, in my LA experience, I went through much less oil using 10w vs. 5w. I also noticed that my car ran crappy or crappier using 5w. Must be my rings and massive blow by. I do have 180K on the car.
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Postby Mafix » Wed Oct 25, 2006 11:24 pm

recommendations on oil cooler kits? i've seen a couple nice looking ones on ebay 200+ though.
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