Hey, new guy here, highschool student on a budget

[1990 GMC gas hog]

They certainly didn't decrease my mileage

[Frank Lee]

Originally Posted by 1990 GMC gas hog

Anyways Frank what is better a tonneau or a regular cap? I can get a cap for mine 150$ but not sure if it fits, my truck has the stepside, or I can get a tonno for 250$.

I don't know, especially on a stepside which is probably going to have worse aero than a fleetside.

[1990 GMC gas hog]

i don't know if I'd like the look of a cap on a stepside so I think that I'll put a tonno on. I like the stepside, it gives it a muscle-classic look. Only thing is that it has smaller bed space

[1990 GMC gas hog]

And I have a couple other questions, how do electric fans work? And Also a grille block what exactly does that do? If it blocks your grille, then wouldn't that block you radiator and overheat your car?

[4more]

The mech. fan driven off the engine takes power from the engine and more gas. A electric fan frees gas powered power.There are universal ones or you can find a factory setup that fits.a coworker used a mid 2000s Impala dual fan on his suburban and it worked well for him.you can wire it to a toggle switch or temps switch to kick on at a set temp.
the grille block will block air but you can block some but not all depends on city or highway driving that you do.you can play around with tape if it runs hot remove some tape.good luck

[California98Civic]

Originally Posted by 1990 GMC gas hog

I mean can't find a scan gauge. Can't find one for vehicles under 96

I can't use the ScanGauge either. But a gauge is really important. Consider an Ultra Gauge. It's what I use.

[1990 GMC gas hog]

Do the electric fans run of the battery? I think that is a great investment but I'm not sure about the grill block i think that's just splitting hairs. But what about that mpguino? Or a vacuum gauge? How would vacuum gauges give you what mpg your getting?

[Christ]

If you're really interested in saving fuel as a college student, why not do some research?

The search function seems to work perfectly well these days, and almost all your general questions have been answered countless times, several in one or two main threads... Theyre in the site header.

[1990 GMC gas hog]

OK I'll look for the other truck modders to

[Gaud29]

Well Hi, I'm Marcel in Az, I've got a Full-size '91 Chevy Blazer, 4wd, and on the freeway at 68 mph. I get a consistent 20-21mpg.... in the city,, well with 8 kids under the hood, they all need to "eat" (or drink) but I've gotten, 16.1mpg.... maybe some people irritated with my slow starts though.... yes, "tire inflation", allignment, I'm running a TBI spacer. don't know if it helps in the mileage, but it feels more powerful. I've read about a product in a "base newspaper" back in '97, and have been using it ever since,,,,,it DOES HELP . I've also began using those plugs that're advertised in Pop Mech/pop Sci. they really help in the "FEEL"/Running of my old truck.. I've not done a Mileage loop yet... but I've just recently changed over my 4 tires, from "off-road" to "hyway" types.... I've blocked off some of the grill, am "Going to" put up a "curtain" underneath , to smooth the flow of air under the blazer,, and "moon-disks,,and a pair of skirts....will be coming,,,,,,then, going from 2-into 1,,,,,to "Dual" with headers, flowmasters, (while still keeping the O2 sensor)..... and for my LAST THing I'm going to do is to change the ring/pinion from 3.73> to down to a 3.42...... it'll still be 4x4 capable, but,,, I'm believing that I should hit "25" hwy,, and hoping for ........? 18 City? Please, please?