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Sorry if I missed it. But what brand of oil filter are you using?

I think it will be fine actually since you do multiple 200 mile drives each month. That will clear out the DPF and any fuel dilution. My wife has a 12 VW Golf TDI with a DPF and we have had it for 2 1/2 years and 30k miles. Her work is 2 miles from home. But she drives it to her families house...

I was kinda thinking about trying Amsoil's Z-ROD since these have a flat tappet cam and zrod is designed for that. Thoughts?

Doesn’t Royal Purple use a lot of Moly? And doesn’t Cummings claim moly causes valvetrain wear or something and are totally against using it.

First of all I would say that there is more to using synthetics then just long drains. But to answer your question I do believe this oil could of stayed in the bike much longer the TBN was still very very high.

I used to work as a service writer for a local ford dealership. The 6.0 defiantly had lots of issues. It was kinda of rushed IMOP because of the new emissions standards. The 6.4 is not a updated or bored out version of the 6.0 it’s a completely new engine and has fixed most of the problems the...

Originally Posted By: Johnny OVERK1LL, the only thing stopping the cold wind coming from Canada to Kansas is one barbed wired fence. LMAO

Originally Posted By: OVERK1LL When I think cold, I think Canada cold, I guess Kansas cold is not the same? Yeah its not Canada cold. Probably pretty mild compared to what your used to. But main thing is it's going to be cold (for me) the next 6 months so that was being in consideration in...

Thinks for all the advice and info guys. Pablo you don’t seem to care much for the HDD??? Any reason?

Hello. Getting ready to pick up a 1984 6.9 IDI f250. For those not familiar with the engine it's basically a 7.3 before it was bored out. It is also normally aspirated. Anyways it has 150k on it and is mechanically sound. I am in Kansas and it will be driven in cold weather, lots of short trips...

Originally Posted By: Merkava_4 I'm thinking the spring tension in hydraulic lifters are calibrated for a certain oil viscosity range; going too thin could cause the lifters to bleed off the thin oil and thus causing a tick caused from excessive clearance. I would agree with this. Wonder if...

I agree with Fnbrowning , seems like all ls1's have high copper in thier uoa.

I don't think the power level your at you'll need any special oils I would still recommend a good synthetic like amsoil. btw my 04 cobra running 0w-30 sso its 500hp at the crank UOA's look great.

T-56's are supposed to use ATF

Those DOHC 5.4 are nice engines. :-) Me personally would run amsoil 0w-30 SSO. When you got a nice vehicle like that why skimp IMHO.

Originally Posted By: Gary Allan Quote: I am little confused by your calculation. Since the viscosity is figured at 32 degree's for the "winter" weight (5 vs 20 weight) and 212 degree's Fahrenheit ( 20 vs 50 weight), I don't see how a 5w-20 can be thicker then the 20w-50 weight at any same...

I was a service writer for a local ford dealership and the hwy patrol would always bring thier cars in. They would use the motorcraft 5w-20 but if I remebered they would always bring thier own filter for oil, air and fuel. I would have to agree the CVPI are very durable never seen one have a...

I have this factory supercharger on my 04 cobra. Overlord is correct motorcraft and gm have a oil specific for this. Lot of people just use a 10w-30 synthetic even porting companys like Stiegmeir , or some like redline racing oil 30 weight. Btw this has a 8oz capacity

Originally Posted By: Junior Originally Posted By: BoostFiend Do NOT run 20-50 weight in these engines, the hydraulic lash adjusters are not designed to run this thick of oil and will cause them to not be able to bleed down correctly. Also with the tight tolerences of this engine can cause oil...

Originally Posted By: Gary Allan