Visual Automotive Reference
Clear, illustrated charts for the stuff you're always looking up under the hood — with a diagram of the actual part, not a wall of text.
Find it. Fit it. Fix it.
Decode your sidewall + a calculator for diameter and speedometer error.
Open chart →4, 5 & 7-pin connector pinouts with every wire labeled.
Open chart →Torque specs by vehicle & stud size, plus the star sequence.
Open chart →Blade fuse colors, amp ratings and the five physical sizes.
Open chart →H11, 9005, H4 & every base type — what fits and what swaps.
Open chart →Ball sizes, capacities, shank & the Class I–V hitch ratings.
Open chart →BCI group dimensions, terminal type & positive-post position.
Open chart →What 5W-30 & the "W" mean, plus a grade chart by climate.
Open chart →Hook, push button, pinch tab & more — find the clip that fits.
Open chart →Socket sizes, gap ranges & how to set the gap right.
Open chart →Click & digital picks for car work, by budget and job.
Read guide →Portable lithium packs, matched to your engine size & budget.
Read guide →Brightest halogen & LED picks — and the legality catch.
Read guide →Beam, hybrid & winter picks — plus how to get the right fit.
Read guide →Reference you can trust — built around real-world parts