In that case, I'd be giving some attention to your tranny and cooling system and making sure they're in top form opposed to worrying about oil capacity, like adding an external tranny fluid cooler -essential for frequent towing.
Try back-flushing out your rad and block, verify your using proper thermostat and cap and you could also use SlantSixDan's engine flush recipe (search 'soup' or 'engine flush') to ensure your oil system is clean in the first place. No point adding more mud to the pile unless you have a good, clean base to work up from.

Interesting that there are trucks/vans that have 360s even 440s that only came with 6qt capacity from the factory. With the 6qts you already have, you literally have 'one up' on the competition for an engine half the displacement and horsepower!

I did the radiator clean out when I bought the truck 2 months ago. the trans is manuel and I just filled her up along with the rear....the day after we bough it.

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slant six's RULE!
http://www.usajon.com

I hope you have a unobstructed exhaust system! When hauling like that you don't want allot of restriction or the SL6 will talk to you.....I would be running Doctor Dodges Dutra Duels so you can get more torque and one of his reworked high volume oil pumps.

What is your rear end gear ratio?

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

exhaust is new /say 7K miles muffler tail pipe..works fine. I never let my oil get darker then tea. change 1000-2000K..I like to change our oil...I learn years ago as a kid with more time then computers...takeing apart old motors..some were so caked inside the oil didnt flow down some of the oil passages....

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slant six's RULE!
http://www.usajon.com

This is extremely wasteful and utterly unnecessary. It's 2008, not 1948. We have excellent oils that'll easily last four to eight times longer than you're using it, and excellent filters that'll keep working for similar timeframes.

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一期一会
Too many people who were born on third base actually believe they've hit a triple.

I put that oil in my 286K vw oil burner ...it use's 1 quart/200 miles...never gets dark,

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slant six's RULE!
http://www.usajon.com

if youre bent on more oil the a wix 51515 is what I run, although there are larger filters but as SL6 dan says its not needed. In the light of giving you what you are after the list of even larger filters is
EaO26 Amsoil
51773 Wix
51459 Wix
BT251 Baldwin
BT347 Baldwin
B7018 Baldwin
L40017 Purolator
L44796 Purolator
L45319 Purolator
P550299 Donaldson
P551603 Donaldson
P551267 Donaldson

all 3/4-16 threads.

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225, Offenhauser, Holley 350, A833OD, 3:55, GM HEI,99 Durango starter
BOOSTED! WH1C, BIG FMIC, 10#
Operation Noble Eagle 03-05
Operation Iraqi Freedom 05-07
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