Has anyone been using Mobil 0W-40 Full Synthetic for oil? I'm currently using Mobil 5W-30 Full Syn. with a K&N oil filter, but if it's beneficial to switch to something else I will. What are quality brands and weights to use? Also are there any recommended additives-I've stayed away from them until now but if something works then I'll use it.

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STG 1 PCM, Borla Cat Back, Maddog 58%, MSD Wires, K&N CAI w/ PTP Splash Shield, WG, Check Valve, Fuel Pump Rewire, GReddy OCC and TT, AGP Bones and Trans Mount, 180 Stat, Walbro 255, DTEC FC, AEM UEGO, MAXXFAB 3" O2 Housing and Hi-Flow Cat

i use 0-40 whenever i can. it's not an easy weight to come by, but my car seems to like it better. i only use mobil 1 oils, and have never used any additives, they don't seem to do much so why waste the money.

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psichick.net

i use 10w40 royal purple with a wix filter.

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O.K. Thanks--Are there any issues with more blow-by when running the lighter weight? Is that why blue_srt4 uses 10W? Do you both use them year round, or switch for winter/summer? I don't have a cc yet, but hope to soon (any recommendations greatly appreciated) . I agree about the additives, but wasn't sure because I've never had a 4 cyl. or turbocharged car.

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STG 1 PCM, Borla Cat Back, Maddog 58%, MSD Wires, K&N CAI w/ PTP Splash Shield, WG, Check Valve, Fuel Pump Rewire, GReddy OCC and TT, AGP Bones and Trans Mount, 180 Stat, Walbro 255, DTEC FC, AEM UEGO, MAXXFAB 3" O2 Housing and Hi-Flow Cat

The owner's manual says to not use oil additives and recommends synthetic oil. Mobil-1 has worked fine for me and is cheaper than the other brands like Amsoil and Redline or Royal Purple. Plus it comes from a company that has been making motor oil for a very long time. I have no issues with it and I shop around and can find it in 0W-40 at any auto parts store for the winter time and I run 5W-30 in the summer which is a weight Wal-Mart carries all the time at a cheap price.

You need an oil catch can ASAP!!!!!!!! Refer to the stickys at the top of the SRT-4 section page.

Dusty

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2004 SRT-4 w/Stage 1, M/B Exhaust, BOV, 3-D Taillights, MPx Front STB, $22.97 OCC, K&N Filters. Dodge Forum's FIRST Car of the Month!!!!

Thanks Dusty I'll be taking a trip to Auto Zone tomorrow soon as I get out of work Checked out the stickys and now I understand the urgency to have them, especially since I have a lead foot! Also going to take your advice on the oil as well thanks again!

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STG 1 PCM, Borla Cat Back, Maddog 58%, MSD Wires, K&N CAI w/ PTP Splash Shield, WG, Check Valve, Fuel Pump Rewire, GReddy OCC and TT, AGP Bones and Trans Mount, 180 Stat, Walbro 255, DTEC FC, AEM UEGO, MAXXFAB 3" O2 Housing and Hi-Flow Cat