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Originally Posted By: artificialist The Mitsubishi Galant DOES NOT USE conventional green coolant. It uses non-silicate coolant that is dyed green! Get Zerex Asian Vehicle, Beck/Arnley Asian, or get Mitsubishi OEM coolant. Don't put regular green in there or it will destroy the water pump! This...

Originally Posted By: k1rod 01 is an ALH engine which isn't particulary sensitive to oil. It's when you get into the PD engines starting in 04 that you start finding oil issues. I run Mobil 1 TDT 5W-40 in mine. I change it every 12,000 miles. The car has 167,000 miles on it and still runs like...

Just use a ch-4 oil. T6 or tdt would work great.

Thank you for the input. I'll do as you suggested and pull a UOA around 5k to see where we're at. I'll leave the oil in and wait for results. If they're good, repeat around 7500. Then again at 10k, if the results show it's possible. I like the idea of trying to find the best quality full...

Originally Posted By: surfstar Sump isn't that small. I had a 2.0L Mazda (gasser) with 3.7 qt sump that only took 3.5 qts during oil/filter change. 4.5qt for a 1.9L isn't all that bad. That's a gas engine though. This is a diesel. Is 4.5qt even enough to contain the soot over the course of...

Really? That's cool. Do you think I can go 10k with the given usage? I'm used to gas engines where 5k~7.5k is more common. I thought that with the added contamination and no increase in capacity that the OCI wouldn't be that long! *note* this is a PD engine. A bit different from previous and...

Vehicle is a VW Jetta 1.9l TDI. Currently has 124k miles on it. Sump capacity is 4.5qts Oil used is Mobil 1 TDT 5w-40 Miles driven 17k per year. 30/70 city/highway Recommended OCI is 10k. We just got the vehicle. I'm confident in TDT as a robust oil. I'd like to run it for at least 10k...

Originally Posted By: CATERHAM Guys, this is poor advice. A 5W-40 won't provide "more protection" over a 5W-30 for the OP's Civic. You're just supporting a myth. But, but, the engine runs quieter when the 5w-40 is in there. The must mean it likes it more! /sarcasm

I already noticed valvetrain noise isn't as loud in the morning on a cold start. This was due to a 15w old with ~5k miles on it though

Well, decided to try 5w-20 and see what happens. "Winter" is finally here. I had to get the Rotella 15w-40 out of it. Went with Quaker State Green Bottle.

Originally Posted By: bepperb In Florida sooner or later you're going to be stuck in traffic on a hot piece of tarmac with the a/c running. Whatever advantage you would get from a thinner oil is totally overwhelmed by the small but significant chance you'll get the oil too hot and thin and cause...

Originally Posted By: LeakySeals Originally Posted By: CATERHAM If it is for fuel economy reasons then yes you likely can use a 20wt oil. At the very least I'd be using a modern 5W-30 in the Galant. Assuming you don't have an oil pressure gauge in you 11 year old Galant, if you drive the car...

Whoops, you're right, it is the 2.4l Interesting about the added weight. Now I'm curious as to how that'd affect the loads in the engine and if it'd be enough to require a higher viscosity.

Wow, oil is getting expensive now! I have a 2001 Galant with a 2.0. The manual calls for 10w-30. This same engine is also used in the Lancer. In that car it calls for 5w-20. Would it be incorrect for me to believe that I could use 5w-20?

Originally Posted By: Brent_G I dont think going thicker is going to be the answer, my mx quad with a yama 450 cc engine is pushing over 15:1, and lives its life at 10k rpms in racing, and i just replaced the crank this fall at 300 hours still tight, and thats always had 15w40 in it. Woah...

The oils I listed have high detergent levels.

What would bring you to make that choice? You're talking a modified basestock(RT6) vs a synthetic basestock(TDT)

Mobil 1 TDT 5w-40

Why not throw Rotella, Delo, or Delvac in it? Those are much more cost effective options and will clean the engine nicely.

just Google dry film lubricant and take your pick. I personally like chain lube with PTFE in it. works great on my ATV and motorcycle le chain, door hinges, fishing reel bearings, etc...